Step
| Action
| Value(s)
| Yes
| No
|
1
| Is the transmission
removed from the vehicle?
| --
|
Go to Step
2
|
Go to Step 7
|
2
| Using J 39200
DMM
and J 35616-A
connector test
adapter kit, measure the resistance between terminals A and D at the automatic
transmission 4-way connector.
Is the resistance greater than shown?
| 250K ohms
|
Go to Step 4
|
Go to Step
3
|
3
|
- Remove transmission side cover. Refer to
Control Valve Body Disassemble
in the 3T40 Section of the Transmission Unit Repair
Manual.
- Disconnect black wire from the 3rd clutch pressure switch assembly.
Is the resistance greater than shown?
| 250K ohms
|
Go to Step 18
|
Go to Step
16
|
4
| Measure the resistance from terminal A to the transmission
case.
Is the resistance greater than shown?
| 250K ohms
|
Go to Step 5
|
Go to Step
17
|
5
| Measure the resistance from terminal D to the transmission
case.
Is the resistance greater than shown?
| 250K ohms
|
Go to Step 6
|
Go to Step
17
|
6
|
- Disconnect the black wire from the 3rd clutch pressure switch
assembly.
- Using J 39200
DMM
and J 35616-A
connector test
adapter kit, measure the resistance between terminal A of the automatic transmission
4-way connector and the black wire lead of the TCC solenoid valve.
Is the resistance within the values shown?
| 19-31 ohms
| Exit table
|
Go to Step 17
|
7
|
- Turn the ignition switch to the OFF position.
- Disconnect the automatic transmission 4-way connector.
- Using J 35616-A
connector test adapter kit, place a test light from terminal A of the engine
side of the automatic transmission 4-way connector to a good ground.
- Turn the ignition switch to the RUN position.
Is the test light On?
| --
|
Go to Step
9
|
Go to Step 8
|
8
| Check the ERLS fuse for an open. Refer to
General Electrical Diagnosis
.
Was the problem found?
| --
|
Go to Step
11
|
Go to Step 12
|
9
|
- Turn the ignition switch to the OFF position.
- Reconnect the automatic transmission 4-way connector.
- Install a scan tool.
- Start the engine and allow it to reach operating temperature.
- Operate the vehicle in D2 (2nd gear) to obtain 64 km/h
(40 mph).
- View the scan tool TCC Enable parameter.
When it is enabled, does the TCC engage (a noticeable decrease in engine
rpm)?
| --
|
Go to Step 14
|
Go to Step 10
|
10
|
- Operate the vehicle in D3 (3rd gear) to obtain 64 km/h
(40 mph).
- View the scan tool TCC Enable parameter.
When it is enabled, does the TCC engage (a noticeable decrease in engine
rpm)?
| --
| Exit table
|
Go to Step 15
|
11
| Check the fused ERLS circuit for a short to ground. Refer to
General Electrical Diagnosis
.
Was the problem found?
| --
|
Go to Step
13
| --
|
12
| Check the fused ERLS circuit for an open. Refer to
General Electrical Diagnosis
.
Was the problem found?
| --
|
Go to Step
13
| --
|
13
| Repair wiring. Refer to
Wiring Repairs
.
Is the repair completed?
| --
|
Go to Step
1
| --
|
14
| Check wire from the TCC solenoid valve to the 3rd clutch pressure switch
assembly for a short to ground. Refer to
General Electrical Diagnosis
.
Was the problem found?
| --
|
Go to Step
17
|
Go to Step 18
|
15
|
- Remove transmission side cover. Refer to
Control Valve Body Disassemble
in the 3T40 Section of the Transmission Unit Repair
Manual.
- Disconnect black wire from the 3rd clutch pressure switch assembly.
- Using J 39200
DMM and J 35616-A
connector
test adapter kit, measure the resistance from terminal A of the automatic
transmission 4-way connector to the black wire lead of the TCC solenoid valve.
Is the resistance as shown?
| 19-31 ohms
|
Go to Step 18
|
Go to Step
17
|
16
| Inspect the transmission internal wiring harness assembly
for the wires being shorted together.
Refer to
General Electrical Diagnosis
.
Was the condition found?
| --
|
Go to Step
17
| --
|
17
| Replace the internal wiring harness assembly.
Refer to TCC Solenoid and Switches Replacement.
Is the replacement complete?
| --
|
Go to Step
1
| --
|
18
| Replace the third clutch pressure switch assembly.
Refer to TCC Solenoid and Switches Replacement.
Is the replacement complete?
| --
|
Go to Step
1
| --
|
