Transmission Control Systems: Testing and Inspection

ELECTRONIC TRANSMISSION CONTROL

TROUBLESHOOTING HINTS
- Try the following check before doing the System Check.
Check Fuses if all the Transmission Range Display bulbs do not operate.

- Go to System Check for a guide to normal operation.


SYSTEM CHECK

- Use the System Check Table as a guide to normal operation.
- Refer to System Diagnosis for a list of symptoms and diagnostic steps.

System Check Table:

- Refer to System Diagnosis when a result is not normal.


SYSTEM DIAGNOSIS

- Do the tests listed for your symptom in the Symptom Table below.
- Tests follow the Symptom Table.

Symptom Table:

NOTE: The Transmission Control Unit is located behind the speaker cover in the left A pillar. This requires removing the speaker cover and the speaker connectors. Remove the Transmission Control Unit from A pillar. Then remove screw from the connector cover and slide off to facilitate measurements.

A:

B:

C:

D:

E:

F:

G : Table 1:

G : Table 2:

H:

I:

J : Table 1:

J : Table 2:

K:

L:

L (cont'd):

M:

NOTE: The highest voltage at full open position should be .22 volts less than the stabilized voltage. Adjust Throttle Position Sensor accordingly.