Operation CHARM: Car repair manuals for everyone.

Transmission Control Systems

DIAGNOSIS
Engine speed input signal circuit is open or shorted.

TROUBLE SYMPTOM
- No lock-up (after engine warm-up).
- AT OIL TEMP indicator remains on when vehicle speed is "0".





WIRING DIAGRAM

TEST STEPS:

Step 8C1:





Step 8C2:





Step 8C3:





Step 8C4:





Step 8C5:





Step 8C6:





Step 8C7: