Engine Torque Reduction

Symptom:
ENGINE TORQUE REDUCTION

Test 1:

Test 2-6:

When Monitored:
Engine intervention active for at least 20 ms, no engine torque errors, engine torque demand is greater than 0.

Set Condition:
Torque Reduction acknowledge bit - not set, no shift aborts, the error flag torque reduction acknowledge is not set, Engine controller not supporting torque requests.

POSSIBLE CAUSES
- CAN BUS CIRCUIT DTC PRESENT
- CAN C BUS +/- CIRCUIT OPEN
- ENGINE DTCS PRESENT
- PCM/ECM - ENGINE CAN MESSAGE MISSING
- TCM - ENGINE CAN MESSAGE MISSING