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057RT–01 05–700 DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTION SYSTEM 865 AuthorĂ: DateĂ: 2004 COROLLA (RM1037U) TOYOTA VEHICLE INTRUSION PROTECTION SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Troubleshoot in accordance with the procedure on the following pages. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See page 05–701) (a) Without applicable symptoms, proceed to ”A”. (b) With applicable symptoms, proceed to ”B”. B Go to step 4 A 3 SYMPTOM SIMULATION 4 PROBLEM SYMPTOMS TABLE (See page 05–707) (a) Without applicable symptoms, proceed to ”A”. (b) With applicable symptoms, proceed to ”B”. B Go to step 5 A 5 CIRCUIT INSPECTION AND PART INSPECTION (See page 05–707) 6 PERFORM TROUBLESHOOTING IN THE FOLLOWING METHOD, DEPENDING ON MALFUNCTION SYMPTOM (a) Terminals of ECU (Seepage 05–703 ) (b) On–vehicle inspection (Seepage 73–14 ) 7 ADJUSTMENT, REPAIR OR REPLACEMENT 8 CONFIRMATION TEST END

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057RT–01

05–700 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

865Author�: Date�:

2004 COROLLA (RM1037U)

TOYOTA VEHICLE INTRUSION PROTECTION SYSTEMHOW TO PROCEED WITH TROUBLESHOOTINGTroubleshoot in accordance with the procedure on the following pages.

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK(See page 05–701)

(a) Without applicable symptoms, proceed to ”A”.(b) With applicable symptoms, proceed to ”B”.

B Go to step 4

A

3 SYMPTOM SIMULATION

4 PROBLEM SYMPTOMS TABLE (See page 05–707)

(a) Without applicable symptoms, proceed to ”A”.(b) With applicable symptoms, proceed to ”B”.

B Go to step 5

A

5 CIRCUIT INSPECTION AND PART INSPECTION (See page 05–707)

6 PERFORM TROUBLESHOOTING IN THE FOLLOWING METHOD, DEPENDING ONMALFUNCTION SYMPTOM

(a) Terminals of ECU (Seepage 05–703)(b) On–vehicle inspection (Seepage 73–14)

7 ADJUSTMENT, REPAIR OR REPLACEMENT

8 CONFIRMATION TEST

END

057RU–01

TVIP SYSTEM Check Sheet Inspector’s name:

Customer’s Name

Date Vehicle

Registration No.

Registration Year

Frame No.

Odometer Reading / / kmMile

Weather ConditionsWhen ProblemOccurred

Frequency Problem Occurs

Weather

Outdoor temperature

/ /

� Constant � Sometimes ( Times per day, month)� Once only

Brought in

� TVIP system cannot be set.

� Indicator light does not flash when the TVIP system is set. (It stays on or does not light at all.)

� TVIP system does not operate.

� When unlocked using the front door lock knob.� When the doors or luggage is opened.

� System cannot be canceled, once set.

� When door is unlocked using key or wireless door lock control system.� When the key is inserted in the ignition key cylinder and turned to ACC or ON position. (However, only when the system has never operated)

� System cannot be canceled during warning operation.

� When door is unlocked using key or wireless door lock control system.� When the key is inserted in the ignition key cylinder and turned to ON position.

� Warning operation starts when the system is set and the door is opened with the key.

� Others.

Date Problem First Occurred

� Fine � Cloudy � Rainy � Snowy� Various/Others

� Hot � Warm � Cool� Cold (Approx. °F ( °C))

Problem Symptom

Malfunction� Horn only� Headlights only� Hazard lights only� Room light only� Forced door lock operation only

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–701

866Author�: Date�:

2004 COROLLA (RM1037U)

CUSTOMER PROBLEM ANALYSIS CHECK

057RV–01

B58634

Horn Low Pitched Horn Assy (Horn)

Engine Room J/B� HORN Fuse� HORN Relay� Headlight Control Relay

Headlight

TVIP ECU

Ignition Switch� Key Unlock Warning Switch

Security Indicator(w/ Glass Breakage Sensor)

Starter Cut Relay

Glass Breakage Sensor ECU

Instrument Panel J/B (Integration Relay)

Front Door w/ Motor Lock Assy LH(Door Unlock Detection Switch)

Luggage Door Lock Assy(Luggage Compartment Light Switch)

Hazard Warning Light

Room Light

Courtesy Lamp Switch Assy Front LH

Front Door w/ Motor Lock Assy RH(Door Unlock Detection Switch)

Rear Door w/ Motor Lock Assy RH

Courtesy Lamp Switch Assy Front RH

Courtesy Lamp Switch Assy Rear LH

Hazard Warning Signal Switch

Courtesy Lamp Switch Assy Rear RH

Hazard Warning Light

Rear Door w/ Motor Lock Assy LH

05–702 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

867Author�: Date�:

2004 COROLLA (RM1037U)

LOCATION

057RW–01

B50657

T3

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–703

868Author�: Date�:

2004 COROLLA (RM1037U)

TERMINALS OF ECU1. INSPECT TVIP ECU

(a) Inspect the ECU–B, DOME and ECU–IG fuses.(b) Disconnect the TVIP ECU connector, and the continuity and voltage of check each terminal of the dis-

connected connector.Standard:

Symbols (Terminal No.) Wiring Color Condition Specified Condition

+B1 (T3–2) ⇔ E (T3–29)

R–B ⇔ W–B Constant 10 – 14 V

CTY (T3–19) ⇔ E (T3–29)

R ⇔ W–B�Passenger’s door fully closed → Opened�Rear right door fully closed → Opened�Rear left door fully closed → Opened

No continuity → Continuity

DSWD (T3–40) ⇔ E (T3–29)

R–W ⇔ W–B Driver’s door fully closed → Opened No continuity → Continuity

DSWL (T3–35) ⇔ E (T3–29)

R–W ⇔ W–B Luggage’s door fully closed → Opened No continuity → Continuity

KSW (T3–12) ⇔ E (T3–29)

L–B ⇔ W–B No key in ignition switch lock cylinder → Key inserted 0 V → 10 – 14 V

L2 (T3–16) ⇔ E (T3–29)

G ⇔ W–B Driver’s door lock UNLOCK → LOCK0 V → 10 – 14 V

→ 1 V or less

UL3 (T3–17) ⇔ E (T3–29)

L–Y⇔ W–B Driver’s door lock LOCK → UNLOCK0 V → 10 – 14 V

→ 1 V or less

UL2 (T3–18) ⇔ E (T3–29)

L–B⇔ W–B Passenger’s door lock LOCK → UNLOCK0 V → 10 – 14 V

→ 1 V or less

IRSG (T3–28) ⇔ E (T3–29)

W ⇔ W–B Driver’s door lock LOCK → UNLOCK Pulse generation

IG (T3–10) ⇔ E (T3–29)

B–W ⇔ W–B Ignition switch OFF → ON 0 V → 10 – 14 V

SRLY (T3–21) ⇔ E (T3–29)

B–R ⇔ W–B Ignition switch OFF → ON 0 V → 10 – 14 V

LSWD (T3–37) ⇔ E (T3–29)

W ⇔ W–B Driver’s door lock UNLOCK → LOCK 0 V → 10 – 14 V

LSWP (T3–38) ⇔ E (T3–29)

W–R ⇔ W–B Passenger’s door lock UNLOCK → LOCK 0 V → 10 – 14 V

If the result is not as specified, the vehicle’s side may malfunction.

B57790

Integration Relay Connector(Wire Harness Side)

I11

05–704 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

869Author�: Date�:

2004 COROLLA (RM1037U)

(c) Reconnect the TVIP ECU connector, and the continuity and voltage of check each terminal of the dis-connected connector.Standard:

Symbols (Terminal No.) Wiring Color Condition Specified Condition

DMLP (T3–9) ⇔ E (T3–29)

R–W ⇔ W–B Armed state → Alarm sounding state Pulse generation

HEAD (T3–6) ⇔ E (T3–29)

R ⇔ W–B Light control switch position HEAD → OFF or TAIL 1 V or less → 10 – 14 V

HAZD (T3–8) ⇔ E (T3–29)

Y–B ⇔ W–B Armed state → Alarm sounding state Pulse generation

IND (T3–25) ⇔ E (T3–29)

R–W ⇔ W–BSecurity indicator light lights up.(It lights up only for 30 sec.)

10 – 14 V

IOUT (T3–11) ⇔ E (T3–29)

L ⇔ W–BArmed state → Alarm sounding state (on grass breakage detection)

Pulse generation

HORN (T3–5) ⇔ E (T3–29)

G–Y ⇔ W–B Armed state → Alarm sounding state Pulse generation

E (T3–29) ⇔ Body ground

W–B ⇔ Body ground Constant Continuity

If the result is not as specified, the TVIP ECU may malfunction.2. INSPECT INTEGRATION RELAY

(a) Disconnect the connector and check the continuity of each terminal of the disconnected connector.

Symbols (Terminal No.) Wiring color Condition Specified Condition

PCTY (I11–13) ⇔ Body ground

R–W ⇔ Body ground Passenger’s door fully closed → Opened No continuity → Continuity

If the result is not as specified, the vehicle’s side may malfunction.

B59376

B59378

B59532

Instrument Panel J/B Side

IF

Instrument Panel J/B (Integration Relay)

ID

IH

IJ

Instrument Panel J/B Side

Instrument Panel J/B Side

Instrument Panel J/B SideConnector IF

Connector ID Connector IH

Connector IJ

IK

Instrument Panel J/B SideConnector IK

Instrument Panel J/B SideConnector IA

IA

IBInstrument Panel J/B Side

Connector IB

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–705

870Author�: Date�:

2004 COROLLA (RM1037U)

3. INSPECT INSTRUMENT PANEL J/B (INTEGRATION RELAY)

05–706 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

871Author�: Date�:

2004 COROLLA (RM1037U)

(a) Inspect the DOOR fuse.(b) Disconnect the ID connector of the instrument panel J/B, and check the continuity of each terminal of

the disconnected connectors.Standard:

Symbols (Terminal No.) Wiring color Condition Specified Condition

DCTY (ID–1) ⇔ Body ground

R–W ⇔ Body ground Driver’s door fully closed → Opened

PRCTY (ID–14) ⇔ Body ground

R–B ⇔ Body ground Rear LH door fully closed → Opened No continuity → Continuity

PRCTY (ID–15) ⇔ Body ground

R–Y ⇔ Body ground Rear RH door fully closed → Opened

If the result is not as specified, the vehicle’s side may malfunction.

057RX–01

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–707

872Author�: Date�:

2004 COROLLA (RM1037U)

PROBLEM SYMPTOMS TABLEProceed to the reference page shown in the table below for each malfunction symptom and troubleshooteach circuit.HINT:Troubleshooting of the TVIP system is based on the premise that the door lock control system and wirelessdoor lock control system is operating normally. Accordingly, before troubleshooting the TVIP system, firstmake certain that the door lock control system and wireless door lock control system is operating normally.

Symptom Suspected Area See page

TVIP system cannot be set

1. Indicator light circuit

2. ECU power source circuit

3. Key unlock warning switch circuit

4. Door key lock and unlock switch circuit

5. Door unlock detection switch circuit

6. Door courtesy switch circuit

7. TVIP ECU communication circuit

05–708

05–710

05–727

05–738

05–736

05–733

05–740

Indicator light does not blink when TVIP system is set. 1. Indicator light circuit 05–708

TVIP system does not operate when front door is unlocked (whenTVIP system is set).

1. Door unlock detection switch circuit 05–736

TVIP system is not canceled when ignition key is turned to ONposition (when TVIP system is set).

1. Ignition switch circuit

2. Key unlock warning switch circuit

05–713

05–727

TVIP system still operates when door is opened with key (whenTVIP system is set).

1. Door key lock and unlock switch circuit

2. Door unlock detection switch circuit

05–738

05–736

Horns do not sound while TVIP system is in warning operation. 1. Horn relay circuit 05–716

Headlights do not flash while TVIP system is in warningoperation.

1. Light control switch circuit 05–719

Hazard warning do not flash while TVIP system is in warningoperation.

1. Hazard warning switch circuit 05–722

Door is not locked while TVIP system is in warning operation. 1. Door unlock detection switch circuit 05–736

TVIP system is still set even when rear door is open 1. Door courtesy switch circuit 05–733

Horns sound even when TVIP system is not set. 1. Horn relay circuit 05–716

Headlights stay on even when TVIP system is not set. 1. Light control switch circuit 05–719

Hazard warning stays on even when TVIP system is not set. 1. Hazard warning switch circuit 05–722

B59175

TVIP ECU

IND25

3AW–B

T3IND

GND

R–W

J7J/C

RH J/B

19 11

A

IG

2

1

S4Security Indicator

W–B3A

B59187

Security Indicator

05–708 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

873Author�: Date�:

2004 COROLLA (RM1037U)

INDICATOR LIGHT CIRCUIT

CIRCUIT DESCRIPTIONWhen the TVIP system is preparing to be set, this circuit lights up the indicator light. When the system hasbeen set, it continually turns the indicator light on for 0.2 seconds and turns it off for 1.8 seconds, thus theindicator light blinks.

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK SECURITY INDICATOR LIGHT

(a) Remove the security indicator.(b) Check the indicator light, as shown in the illustration and

table.Standard:

Measuring condition Operation

Battery positive (+) ⇔ Terminal 2Battery negative (–) ⇔ Terminal 1

Indicator light comes on

NG REPLACE SECURITY INDICATOR LIGHT

OK

057RY–01

B52239

B59192 B59594

Security Indicator

TVIP ECU (Wire Harness Side)

T3

S4

(Wire Harness Side)

IND

IND (T3–25)

B59192

Security IndicatorS4(Wire Harness Side)

GND

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–709

874Author�: Date�:

2004 COROLLA (RM1037U)

2 CHECK WIRE HARNESS (TVIP ECU ⇔ SECURITY INDICATOR)

(a) Disconnect the TVIP ECU and security indicator connec-tors.

(b) Check the continuity between the terminals of the TVIPECU connector and security indicator connector, asshown in the illustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Security indicator)

Specified condition

IND (T3–25) ⇔ IND (S4–2) Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

3 CHECK WIRE HARNESS (SECURITY INDICATOR ⇔ BODY GROUND)

(a) Disconnect the security indicator connector.(b) Check the continuity between the terminal of the security

indicator connector and body ground, as shown in the il-lustration and table.Standard:

Symbol (Terminal No.) (Security indicator ⇔ Body ground)

Specified condition

GND (S4–1) ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

I24315 B59176

TVIP ECU

+B1

E

FL MAIN

Battery

2

29

W

Engine Room J/B

RH J/B

W–B

B1

1A11C

ALT

1 2

1IB

1IH

ECU–B

Instrument Panel J/B

R–BT3

T3113A

193A

W–B

A

IG

J7J/C

05–710 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

875Author�: Date�:

2004 COROLLA (RM1037U)

ECU POWER SOURCE CIRCUIT

CIRCUIT DESCRIPTIONThis circuit provides power to operate the TVIP ECU.

WIRING DIAGRAM

057RZ–02

I24329ECU–B Fuse

Instrument Panel J/B

B52239

+B1 (2)T3

E (29)

TVIP ECU

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–711

876Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK FUSE (ECU–B)

(a) Remove the fuse from the instrument panel J/B.(b) Check the continuity of the fuse.

Standard: Continuity

NG REPLACE FUSE

OK

2 CHECK TVIP ECU

(a) Disconnect the TVIP ECU connector.(b) Measure the voltage between the terminals of the ECU

connector, as shown in the illustration and table.Standard:

Symbols (Terminal No.) Specified condition

+B1 (T3–2) ⇔ E (T3–29) 10 – 14 V

E (T3–29) ⇔ Body ground 0 V

NG PROCEED TO NEXT CIRCUIT INSPECTIONSHOWN ON PROBLEM SYMPTOMS TABLE (See page 05–707)

OK

B52239

T3

E (29)

TVIP ECU

05–712 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

877Author�: Date�:

2004 COROLLA (RM1037U)

3 CHECK WIRE HARNESS (TVIP ECU ⇔ BODY GROUND)

(a) Disconnect the TVIP ECU connector.(b) Check the connector on the harness side, as shown in the

illustration and table.Standard:

Symbols (Terminal No.) Specified condition

E (T3–29) ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

B59177

10IG

FL MAIN

Battery

Instrument Panel J/B

IG1 RelayECU–IG 9

IF B–W

W–B

W

B–YAM1 IG1

I10Ignition SW

ALT

Engine Room J/B

11C

J6J/C

A

IE

1 2

W

11D

J7J/C

A

IG

12

11A B

T3

10IH

4IF

1IB

35

1 2

1

2IF

12IF

AM1

W

W–B

IA

TVIP ECU

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–713

878Author�: Date�:

2004 COROLLA (RM1037U)

IGNITION SWITCH CIRCUIT

CIRCUIT DESCRIPTIONIf the ignition switch is turned to the ON position, battery positive voltage is applied to the switches, such asterminal IG of the ECU.

WIRING DIAGRAM

057S0–01

B51200

I24329ECU–B Fuse

Instrument Panel J/B

B16200

05–714 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

879Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK IGNITION OR STARTER SWITCH ASSY

(a) Check the ignition switch, as shown in the illustration andtable.Standard:Terminal No. Switch position Specified condition

– LOCK –

1 ⇔ 3 ACC Continuity

1 ⇔ 2 ⇔ 3ON Continuity

1 ⇔ 2 ⇔ 35 ⇔ 6

ON Continuity

1 ⇔ 2START Continuity

1 ⇔ 24 ⇔ 5 ⇔ 6

START Continuity

NG REPAIR OR REPLACE IGNITION OR STARTERSWITCH ASSY

OK

2 CHECK FUSE (ECU–B)

(a) Remove the fuse from the instrument panel J/B.(b) Check the continuity of the fuse.

Standard: Continuity

NG REPLACE FUSE

OK

3 CHECK RELAY (Marking: IG1)

(a) Remove the relay from the instrument J/B.(b) Inspect the relay continuity, as shown in the illustration

and table.Standard:Terminal No. Condition Specified condition

1 ⇔ 2 Constant Continuity

3 ⇔ 5Apply B+ betweenterminals 1 and 2

Continuity

NG REPLACE RELAY

OK

B52239

T3 IG (10)

TVIP ECU

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–715

880Author�: Date�:

2004 COROLLA (RM1037U)

4 CHECK TVIP ECU

(a) Disconnect the TVIP ECU connector.(b) Turn the ignition switch ON.(c) Measure the voltage between the terminal of the ECU

connector and the body ground, as shown in the illustra-tion and table.Standard:

Symbols (Terminal No.) Specified condition

IG (T3–10) ⇔ Body ground 10 – 14 V

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

B59178

TVIP ECU

C10CombinationSW

Engine Room J/B and R/B

HORN5T3G–Y

18IA5

B

HornBattery

FL MAINB

HORN Relay

B–W

13 5

12

HORN

G–Y

1

B–W1

1 2

11A

1

1

1

1

G–Y

G–YG–Y

Center J/B

4A12

4A13

H6Horn Low Pitched Horn Assy (Horn)

05–716 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

881Author�: Date�:

2004 COROLLA (RM1037U)

HORN RELAY CIRCUIT

CIRCUIT DESCRIPTIONWhen the TVIP system is transferred from the armed state to the alarm sounding state, the TVIP ECUswitches on the HORN relay so that it can sound the horns. The horn sounds in 0.4 seconds interval.

WIRING DIAGRAM

057S1–01

I11656

B16200

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–717

882Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK LOW PITCHED HORN ASSY

(a) Connect the positive (+) lead from the battery to the termi-nal and negative (–) lead to the horn body, and check thatthe horn blows.

NG REPAIR OR REPLACE LOW PITCHED HORNASSY

OK

2 CHECK RELAY (Marking: HORN)

(a) Remove the relay from the engine room J/B.(b) Check the horn relay continuity, as shown in the illustra-

tion and table.Standard:Terminal No. Condition Specified condition

1 ⇔ 2 Constant Continuity

3 ⇔ 5Apply B+ betweenterminals 1 and 2

Continuity

NG REPLACE RELAY

OK

B59602

B52239

B59603

TVIP ECU (Wire Harness Side)

T3

Horn (5)

Engine Room J/B

1 2

35

Horn Relay

B59193

B59602

B59595

HornH6

(Wire Harness Side)

Engine Room J/B

1 2

35

HORN Relay

05–718 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

883Author�: Date�:

2004 COROLLA (RM1037U)

3 CHECK WIRE HARNESS (TVIP ECU ⇔ ENGINE ROOM J/B)

(a) Remove the horn relay from the engine room J/B.(b) Check the continuity between the terminals of the TVIP

ECU and engine room J/B connectors, as shown in the il-lustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Engine room J/B)

Specified condition

HORN (T3–5) ⇔ 2* Continuity

*: Horn relay terminal.

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

4 CHECK WIRE HARNESS (ENGINE ROOM J/B ⇔ HORN)

(a) Check the continuity between the terminals of the engineroom J/B and horn connectors, as shown in the illustrationand table.Standard:

Symbols (Terminal No.) (Engine room J/B ⇔ Horn)

Specified condition

3* ⇔ Horn (H6–1) Continuity

*: Horn relay terminal.

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

B59179

TVIP ECU

C12Combination SW(Light Control Switch)

HEAD6T3

IE

AJ6J/C

W–B*1

10

214B

R

12

LightControlSW

OFF

Tail

Head

+B T RF H EL

Center J/B

G*2

114B

2IC

Instrument Panel J/B

2IL

W–B*1

J1J/C

G*2

G*2

W–B

F4Front Parking Light RH

F3Front Parking Light LH

ED EA

*1: USA*2: Canada

G A

A1

2

1

2

A

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–719

884Author�: Date�:

2004 COROLLA (RM1037U)

LIGHT CONTROL SWITCH CIRCUIT

WIRING DIAGRAM

057S2–03

B59189

B52239

B59592

Light Control Switch

TVIP ECU (Wire Harness Side)

T3

C12

(Wire Harness Side)

HEAD (6)

RF (12)

05–720 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

885Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK HEADLAMP DIMMER SWITCH ASSY (LIGHT CONTROL SWITCH) (See page 65–7)

NG REPLACE HEADLAMP DIMMER SWITCH ASSY(LIGHT CONTROL SWITCH)

OK

2 CHECK WIRE HARNESS (TVIP ECU ⇔ LIGHT CONTROL SWITCH)

(a) Disconnect the TVIP ECU and light control switch con-nectors.

(b) Check the continuity between the terminals of the TVIPECU and light control switch connectors, as shown in theillustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Light control switch)

Specified condition

HEAD (T3–6) ⇔ RF (C12–12) Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

B59189

Light Control SwitchC12

(Wire Harness Side)

T (10)

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–721

886Author�: Date�:

2004 COROLLA (RM1037U)

3 CHECK WIRE HARNESS (LIGHT CONTROL SWITCH ⇔ BODY GROUND)

(a) Disconnect the light control switch connector.(b) Check the continuity between the terminal of the light con-

trol switch connector and the body ground, as shown inthe illustration and table.Standard:

Symbols (Terminal No.) (Light control switch ⇔ Body ground)

Specified condition

T (C12–10) ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE(See page 05–707)

B59180

TVIP ECU

*1: w/ Wireless Door Lock*2: w/o Wireless Door Lock

HAZD8T3

T2Turn Signal Flasher Relay

H7Hazard Warning Signal Switch Assy (Hazard SW)

RH J/B

Y–B*1

23C

2 3

A

IG

J7J/C

HAZ 8

Y–B

Y–B*1

W–B

W–B*1

33C

213A

113A

Y–B*1

Y–B*2

05–722 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

887Author�: Date�:

2004 COROLLA (RM1037U)

HAZARD WARNING SWITCH CIRCUIT

CIRCUIT DESCRIPTIONWhen the TVIP system is transferred to the alarm sounding state from the armed state, the signal flasherassembly (relay for hazard warning lights) will be switched ON and the hazard warning lights will start blink-ing.

WIRING DIAGRAM

057S3–03

B59609

No Pin (6)

No Pin (1)

B59600

B52239

B59593

Turn Signal Flasher Relay (Wire Harness Side)

T2

TVIP ECU (Wire Harness Side)

T3

HAZD (8)

HAZ (8)

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–723

888Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK HAZARD WARNING SIGNAL SWITCH ASSY

(a) Check the hazard warning switch continuity, as shown inthe illustration and table.Standard:Terminal No. Switch position Specified condition

– Switch OFF Continuity

2 ⇔ 3 Switch ON Continuity

4 ⇔ 5 Illumination circuit Continuity4 ⇔ 5 Illumination circuit Continuity

NG REPLACE HAZARD WARNING SIGNAL SWITCHASSY

OK

2 CHECK TURN SIGNAL FLASHER ASSY (See page 65–4)

NG REPLACE TURN SIGNAL FLASHER ASSY

OK

3 CHECK WIRE HARNESS (TVIP ECU ⇔ TURN SIGNAL FLASHER)

(a) Disconnect the TVIP ECU and turn signal flasher connec-tors.

(b) Check the continuity between the terminals of the TVIPECU and turn signal flasher connectors, as shown in theillustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Turn Signal Flasher)

Specified condition

HAZD (T3–8) ⇔ HAZ (T2–8) Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

B31237

Hazard Warning Switch(Wire Harness Side)

H7

05–724 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

889Author�: Date�:

2004 COROLLA (RM1037U)

4 CHECK WIRE HARNESS (HAZARD WARNING SWITCH ⇔ BODY GROUND)

(a) Disconnect the hazard warning switch connector.(b) Check the continuity between the terminal of the hazard

warning switch connector and the body ground, as shownin the illustration and table.Standard:

Symbols (Terminal No.) (Hazard warning SW ⇔ Body ground)

Specified condition

H7–2 ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

I24321 B59181

TVIP ECU

Engine Room J/B and R/B

SRLY21T3

Battery

FL MAIN

S8Starter Cut Relay

Instrument Panel J/B

ECM

Starter

STA9E4

B (M/T)B (A/T) B–R

B–W

B

2 1

34

W–B4IF

II17

A

IE

J6J/C

1S31S2

B–R

B–R2IA4

MAIN

2 1

B–R

J2G

J/C

II211

B (A/T)

B

B

B111A

B

11IL

1IM

2 1

53

ST Relay

3IM

J2G

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–725

890Author�: Date�:

2004 COROLLA (RM1037U)

STARTER CUT RELAY CIRCUIT

CIRCUIT DESCRIPTIONWhen the TVIP system operates, the TVIP ECU controls the starter cut relay so that the relay should notbe turned on and consequently the starter can not crank the engine.

WIRING DIAGRAM

057S4–01

I24337

1

43 2

B52239

T3

SRLY (21)

TVIP ECU

05–726 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

891Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK RELAY (Marking: STARTER CUT)

(a) Inspect the relay continuity, as shown in the illustrationand table.Standard:Terminal No. Condition Specified condition

1 ⇔ 2 Constant Continuity

3 ⇔ 4Apply B+ betweenterminals 1 and 2

Continuity

NG REPLACE RELAY

OK

2 CHECK TVIP ECU

(a) Disconnect the TVIP ECU connector.(b) Turn the ignition switch position to the START.(c) Measure the voltage between the terminal of the ECU

connector and the body ground, as shown in the illustra-tion and table.Standard:

Symbols (Terminal No.) Specified condition

SRLY (T3–21) ⇔ Body ground 10 – 14 V

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

I24320 B59182

TVIP ECU

KSW1 2

12

U1UnlockWarning SW

J6J/C

A

IE

W–B L–BT3

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–727

892Author�: Date�:

2004 COROLLA (RM1037U)

KEY UNLOCK WARNING SWITCH CIRCUIT

CIRCUIT DESCRIPTIONThe key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes offwhen the ignition key is removed.

WIRING DIAGRAM

057S5–01

B51903

Push

Free Unlock Warning SwitchUnlock Warning Switch

B59296

B52239

B59596

Unlock Warning Switch

TVIP ECU (Wire Harness Side)

T3

U1(Wire Harness Side)

1 2

KSW (12)

05–728 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

893Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK UN–LOCK WARNING SWITCH ASSY

(a) Disconnect the key unlock warning switch connector.(b) Check the continuity between the terminals of the key un-

lock warning switch connector, as shown in the illustrationand table.Standard:Terminal No. Switch position Specified condition

1 ⇔ 2Push (Key inserted) Continuity

1 ⇔ 2Free (Key removed) No continuity

NG REPLACE UN–LOCK WARNING SWITCH ASSY

OK

2 CHECK WIRE HARNESS (TVIP ECU ⇔ UNLOCK WARNING SWITCH)

(a) Disconnect the TVIP ECU and key unlock warning switchconnectors.

(b) Check the continuity between the terminals of the TVIPECU connectors and unlock warning switch connector, asshown in the illustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Unlock warning switch)

Specified condition

KSW (T3–12) ⇔ U1–2 Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

B59296

Unlock Warning SwitchU1(Wire Harness Side)

1 2

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–729

894Author�: Date�:

2004 COROLLA (RM1037U)

3 CHECK WIRE HARNESS (KEY UNLOCK WARNING SWITCH ⇔ BODY GROUND)

(a) Disconnect the key unlock warning switch connector.(b) Check the continuity between the terminal of the key un-

lock warning switch connector and the body ground, asshown in the illustration and table.Standard:

Terminal No.(Key unlock warning SW ⇔ Body ground)

Specified condition

U1–1 ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

I24322 B59183

TVIP ECU

S4Security Indicator(Glass Breakage Sensor)

G3 Glass Breakage Sensor ECU

Instrument Panel J/B

Engine Room J/B

I10 Ignition SW

Battery

FL MAIN ALT

AM1 IG1AM1

ECU–BR–B

IG1 RelayECU–IG1

IA

W

(Shielded)

SMIC

SMCE

3

4

IOUT11T3

L

B–W

MIC IOUT

GMIC GND

S+B TRIG

11D

1C

J6J/C

A

IE1

1A

2IF

12IF

1IH

9IF

4IF

1IB

1 2B–Y

W

W

W

W–B

B–W5

1 2

3

4

5

1

3

6

8

W

R–B

B1

1 2

W–B

W–B

J7J/C

A

IG

19

11 3A

3ARH J/B

Microphone

W–B

W

05–730 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

895Author�: Date�:

2004 COROLLA (RM1037U)

GLASS BREAKAGE SENSOR CIRCUIT

CIRCUIT DESCRIPTIONThe microphone of the grass breakage sensor is built in the security indicator. When this microphone sensesbreakage of grass, the grass breakage sensor ECU sends the signal of this breakage to the TVIP ECU.

WIRING DIAGRAM

057S6–01

I24334

Connector connectedG3

B59576

TVIP ECU (Wire Harness Side)

Glass Breakage Sensor ECU(Wire Harness Side)

IOUT (3)

T3

G3

IOUT (11)

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–731

896Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK SECURITY INDICATOR LIGHT

(a) Set the system in 30 seconds after filliping the security indicator to check if the alarm is triggered.

OK NO PROBLEM

NG

2 CHECK GLASS BREAKAGE SENSOR ECU (GLASS BREAKAGE SENSOR)

(a) Check the continuity and voltage of the glass breakagesensor ECU, as shown in the illustration and table.Standard:Terminal No. Condition Specified condition

G3–1 ⇔ Body ground Constant Battery voltage

G3–3 ⇔ Body ground Constant Pulse generation

G3–5 ⇔ Body ground Constant Continuity

G3–8 ⇔ Body ground Ignition switch ON Battery voltage

NG CHECK AND REPLACE GLASS BREAKAGESENSOR ECU (See page 01–30)

OK

3 CHECK WIRE HARNESS (TVIP ECU ⇔ GLASS BREAKAGE SENSOR ECU)

(a) Disconnect the TVIP ECU and glass breakage sensorECU connectors.

(b) Check the continuity and between the connectors on theharness side, as shown in the illustration and table.Standard:

Symbols (Terminal No.)(TVIP ECU ⇔ Sensor ECU)

Specified condition

IOUT (T3–11) ⇔ IOUT (G3–3) Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

I24334

G3

Glass Breakage Sensor ECU(Wire Harness Side)

05–732 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

897Author�: Date�:

2004 COROLLA (RM1037U)

4 CHECK WIRE HARNESS (GLASS BREAKAGE SENSOR ECU ⇔ BODY GROUND)

(a) Disconnect the glass breakage sensor ECU connector.(b) Check the continuity between the terminal of the glass

breakage sensor ECU connector and the body ground, asshown in the illustration and table.Standard:

Symbols (Terminal No.) (Glass breakage sensor ⇔ Body ground)

Specified condition

GND (G3–6) ⇔ Body ground Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)

B59184

I11Integration Relay TVIP ECU

D5Door Courtesy SWFront RH

D4Door Courtesy SW Front LH

L4Luggage Compartment Light SW

D7Door Courtesy SWRear RH

D6Door Courtesy SW Rear LH

DMLP9

T3R–W

PCTY

LP

PRCTY

DCTY

13

3

6

5

R–W

R–W1

4IK

3IL

1ID

R

R–W

R–W1

R–W

J10J/C

AA

R–Y1

1R–B

15ID

14ID

CTY19T3

DSWD40T3

R–W

1 DSWL35T3

R–WID2

R–W 11

Instrument Panel J/B

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–733

898Author�: Date�:

2004 COROLLA (RM1037U)

DOOR COURTESY SWITCH CIRCUIT

CIRCUIT DESCRIPTIONThe door courtesy switch turns ON when the door is opened and OFF when the door is closed.

WIRING DIAGRAM

057S7–01

B59818

Push

Free

B59191

B60033

B59599

(Wire Harness Side)

Integration Relay(Wire Harness Side)

I11

D5 Door Courtesy SW Front RH

05–734 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

899Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK COURTESY LAMP SWITCH

(a) Check the courtesy switch, as shown in the illustrationand table.Standard:Terminal No. Switch position Specified condition

1 ⇔ Body groundPush Continuity

1 ⇔ Body groundFree No continuity

NG REPLACE COURTESY LAMP SWITCH

OK

2 CHECK WIRE HARNESS (INTEGRATION RELAY ⇔ DOOR COURTESY SW)

(a) Disconnect the integration relay and door courtesy con-nectors.

(b) Check the continuity between the terminals of the integra-tion relay and door courtesy switch connectors, as shownin the illustration and table.Standard:

Terminal No.(Integration relay ⇔ Door courtesy SW)

Specified condition

I11–13 ⇔ D5–1 Continuity

B59191

B59527

B59598

(Wire Harness Side)

Integration Relay (Instrument Panel J/B)(Wire Harness Side)

ID

D6

Door Courtesy SW Front LH

Door Courtesy SW Rear RH

Door Courtesy SW Rear LH

D4

D7

B59191

B52239

B59597

TVIP ECU (Wire Harness Side)

T3

L4

(Wire Harness Side)

Luggage Compartment Light SW

DSWL (35)

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–735

900Author�: Date�:

2004 COROLLA (RM1037U)

(c) Disconnect the each door courtesy switch connectors.(d) Check the continuity between the terminals of the integra-

tion relay and door courtesy switch connectors, as shownin the illustration and table.Standard:

Terminal No.(Integration relay ⇔ Door courtesy SW)

Specified condition

ID–1 ⇔ D4–1

ID–15 ⇔ D7–1 Continuity

ID–14 ⇔ D6–1

y

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

3 CHECK WIRE HARNESS (TVIP ECU ⇔ LUGGAGE COMPARTMENT LIGHT SW)

(a) Disconnect the TVIP ECU and luggage comportmentlight switch connectors.

(b) Check the continuity between the terminals of the TVIPECU and luggage compartment light switch connectors,as shown in the illustration and table.Standard:

Symbols (Terminal No.)(TVIP ECU ⇔ Luggage compartment light SW)

Specified condition

DSWL (T3–35) ⇔ L4–1 Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See page 01–30)

I24325 B59186

D8Door Key Lock and Unlock SW Front LHDoor Lock Motor Front LHDoor Unlock Detection SW Front LH

D9Door Key Lock and Unlock SW Front RHDoor Lock Motor Front RHDoor Unlock Detection SW Front RH

UL317T3

L2

W–BW–B

16T3

6IC1

J6J/C

W–B

J7J/C

A

IE IG

A

TVIP ECU

Unlock

Lock

L–Y

Center J/B

G24A

UL2

14A

18T3

G

L–Y10IC1

11IC1

G

G

G

GG

7

9

10

L–B

11IJ2

10IJ2L–B

6

5Unlock

Lock

8

1IJ2

W–B

05–738 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

903Author�: Date�:

2004 COROLLA (RM1037U)

DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT

CIRCUIT DESCRIPTIONThe door key lock and unlock switch is built in the door lock motor.

WIRING DIAGRAM

057S9–01

431 2

65 87 9 10

B58512

B52239

B59591

Passenger’s Door Lock

TVIP ECU (Wire Harness Side)

T3

D8

D9(Wire Harness Side)

Driver’s Door Lock

L2 (16)UL3 (17)

UL2 (18)

431 2

65 87 9 10

B58512 B59773

Passenger’s Door Lock

D8

D9

(Wire Harness Side)

Driver’s Door Lock

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–739

904Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK DOOR LOCK (See page 73–3)

NG REPLACE DOOR LOCK

OK

2 CHECK WIRE HARNESS (TVIP ECU ⇔ DOOR LOCK)

(a) Disconnect the TVIP ECU and door lock connectors.(b) Check the continuity between the terminals of the TVIP

ECU and door lock connectors, as shown in the illustra-tion and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Door lock)

Specified condition

UL3 (T3–17) ⇔ D8–10

L2 (T3–16) ⇔ D8–9Continuity

L2 (T3–16) ⇔ D9–6Continuity

UL2 (T3–18) ⇔ D9–5

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

3 CHECK WIRE HARNESS (DOOR LOCK ⇔ BODY GROUND)

(a) Disconnect the door lock connector.(b) Check the continuity between the terminal of the door lock

connector and the body ground, as shown in the illustra-tion and table.Standard:

Symbols (Terminal No.) (Door lock ⇔ Body ground)

Specified condition

D9–8 ⇔ Body groundContinuity

D8–7 ⇔ Body groundContinuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See page 05–707)

I24324 B59185

TVIP ECUD9Door Key Lock and Unlock SW Front RHDoor Lock Motor Front RHDoor Unlock Detection SW Front RH

D8Door Key Lock and Unlock SW Front LHDoor Lock Motor Front LHDoor Unlock Detection SW Front LH

Detection

Detection

LSWP38T3W–R

3IJ2

78

LSWD

1IJ2 W–BW–B

37T3

W3

IC16

IC1 W–B

J6J/C

W–B87

J7J/C

A

IEIG

A

W–R

W

05–736 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

901Author�: Date�:

2004 COROLLA (RM1037U)

DOOR UNLOCK DETECTION SWITCH CIRCUIT

CIRCUIT DESCRIPTIONThe door unlock detection switch is built in the door lock motor assembly. This switch is ON when the doorlock knob is in the unlock position and OFF when the knob is in the lock position. The ECU detects the doorlock knob conditions in this circuit.

WIRING DIAGRAM

057S8–01

431 2

65 87 9 10

B58512

B52239

B59591

Passenger’s Door Lock

TVIP ECU (Wire Harness Side)

T3

D8

D9(Wire Harness Side)

Driver’s Door Lock

LSWP (38)

LSWD (37)

431 2

65 87 9 10

B58512 B59773

Passenger’s Door Lock

D8

D9

(Wire Harness Side)

Driver’s Door Lock

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–737

902Author�: Date�:

2004 COROLLA (RM1037U)

INSPECTION PROCEDURE

1 CHECK DOOR LOCK (See page 73–3)

NG REPLACE DOOR LOCK

OK

2 CHECK WIRE HARNESS (TVIP ECU ⇔ DOOR LOCK)

(a) Disconnect the TVIP ECU and door lock connectors.(b) Check the continuity between the terminals of the TVIP

ECU and door lock connectors, as shown in the illustra-tion and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Door lock)

Specified condition

LSWD (T3–37) ⇔ D8–8 Continuity

LSWP (T3–38) ⇔ D9–7 Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

3 CHECK WIRE HARNESS (DOOR LOCK ⇔ BODY GROUND)

(a) Disconnect the door lock connector.(b) Check the continuity between the terminal of the door lock

connector and the body ground, as shown in the illustra-tion and table.Standard:

Terminal No. (Door lock ⇔ Body ground)

Specified condition

D9–8 ⇔ Body groundContinuity

D8–7 ⇔ Body groundContinuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE(See page 05–707)

I24326 B59563

TVIP ECUI11Integration Relay

TVSS26

W28T3 IRSG

05–740 –DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

905Author�: Date�:

2004 COROLLA (RM1037U)

TVIP ECU COMMUNICATION CIRCUIT

CIRCUIT DESCRIPTIONThe wireless receiver receives a SET/UNSET signal for the TVIP system and sends the signal to the TVIPECU via the integration relay.

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK TVIP ECU

(a) Check that the operation of the TVIP function is normal.HINT:With this inspection, the TVIP ECU CPU can be diagnosed if it works normally or not.

NG CHECK AND REPLACE TVIP ECU (See page 01–30)

OK

057SA–01

B59601

Integration Relay

TVIP ECU (Wire Harness Side)

T3

I11

(Wire Harness Side)

IRSG (28)

TVSS (26)

–DIAGNOSTICS TOYOTA VEHICLE INTRUSION PROTECTIONSYSTEM

05–741

906Author�: Date�:

2004 COROLLA (RM1037U)

2 CHECK WIRE HARNESS (TVIP ECU ⇔ INTEGRATION RELAY)

(a) Disconnect the TVIP ECU and integration relay connec-tors.

(b) Check the continuity between the terminal of the TVIPECU connector and integration relay connectors, asshown in the illustration and table.Standard:

Symbols (Terminal No.) (TVIP ECU ⇔ Integration relay)

Specified condition

IRSG (T3–28) ⇔ TVSS (I11–26) Continuity

NG REPAIR OR REPLACE WIRE HARNESS ANDCONNECTOR

OK

CHECK AND REPLACE TVIP ECU (See page 01–30)