Transmission:Subject:

Application:Issue Date:

U250Valve Body IdentificationToyotaDecember, 2014

Technical Bulletin #1659

U250Valve Body Identification

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A = 12mmB = 22mmC = 16mmD = 57mm

Valve Body: Teardown and AssemblyPrior to valve body disassembly it is recommended that the work area be free of other transmission parts, dirt and oil.1. Remove the solenoid bracket bolts.

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#1659U250Valve Body IdentificationSolenoid Identification

DSLTCC Solenoid

SL2Pressure Control

Solenoid B

S4Shift Solenoid D

SRShift Solenoid E

SL-3Pressure Control

Solenoid C

SLT/EPCPressure Control

Solenoid D

SL-1Pressure Control

Solenoid A

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#1659 U250Valve Body Identification

2. It is very important to identify the location of the solenoids. Wrong gear starts, bind ups and no upshifts can result from mixing the solenoids up.

Mark the solenoid and the valve body with the same number or letter to make sure the right solenoid goes in the right place (above).

Use tag wire or zip ties to hold the solenoids to their brackets (below). They can only be installed onto the valve body in one place.

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#1659U250Valve Body Identification3. Remove 16 bolts and remove the upper valve body cover.

Caution! Do not lose the spring and check ball.

Note: There are no check balls under the separator plate.

A = 10mm X 57mmB = 10mm X 41mmC = 8mm X 22mmD = 8mm X 10mm

Plain.841” X .409” X .059”

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#1659 U250Valve Body Identification

Separator Plate

UpperValve Body

Cover

U250Valve Body Identification

4. Remove 19 lower valve body bolts and carefully remove the plate from the lower body.

A = 41mmB = 14mmC = 30mm

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U250Valve Body Identification

Note the locations of the 10mm check balls.

Lower Cover Plate Gasket

U250Valve Body Identification#1659

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1 B1

2 C0

3 C1

Name

Light GreenInside: Light Blue

Outside: Light Blue

2.00" X .628" X .082"2.152" X .419" X .050"2.00" X .638" X .085"

Spring Color DimensionInside: OrangeOutside: Brown

1.178" X .430" X .055"2.143" X .637" X .078"

Valve Body Accumulator Spring Identification

1 2 3

U250Valve Body Identification #1659

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U250Valve Body Identification

Lower Valve Body Valve Identification

1 Blue2 Plain3 Blue4 Plain5 Green

2.240" X .785" X .062"1.019" X .288" X .023"

Lower Valve Body Spring IdentificationColor Dimension

.701" X .412" X .035"1.132" X .383" X .035".609" X .512" X .037"

12

34 5

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valve

U250Valve Body IdentificationUpper Valvebody Valve Identification

1

2 3

4

5

6

1 White2 Plain3 Green4 White5 Pink6 Plain 1.887" X .443" X .060"

Upper Valve Body Spring Identification

1.195" X .319" X .035"1.197" X .357" X .037" 2.012" X .311" X .020"2.250" X .387" X .024"

Color Dimension.850" X .250" X.033"

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U250Valve Body Identification

Upper Valvebody Valve Identification

1 Plain2 White3 Plain4 Blue5 Plain

.833" X .233" X .024"1.198" X .280" X .035"2.012" X .329" X .047"1.196" X .281" X .035"

Upper Valve Body Spring IdentificationColor Dimension

1.124" X .383" X.035"

1 2

3 4 5

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U250Valve Body Identification

Checkball Locations

Plastic check balls are .220”

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U250Valve Body Identification

Check Valve Location

Plain Spring.909” X .436” X .039”

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