Converter Engagement

NOTE: This test should be performed on the road. If performed on a hoist, feeling the torque converter clutch engage may not be possible.

CAUTION: Do not depress CCC switch with the transmission in gear and the vehicle at a stop. Damage to the converter clutch may result.

1. Accelerate and shift the vehicle up to 3rd gear. Hold steady speed and depress the CCC switch.
- Does the converter engage?
- Does the engine rpm drop?
- Did the CCC solenoid activate?

2. Holding speed steady, release switch.
- Does torque converter clutch disengage?
- Does RPM rise?
- Does TCC solenoid deactivate?

3. Does the transmission pass these tests? If not refer to Diagnosis by Symptom.