Engine CAN Messages Incorrect

Symptom:
ENGINE CAN MESSAGE INCORRECT

When Monitored and Set Condition

When Monitored: CAN-ID received at least once and CAN Bus Circuit DTC is not active.

Set Condition: DTC Detected if the number of bytes incorrect for CAN ID.

POSSIBLE CAUSES
- ENGINE DTCS PRESENT
- ECM - ENGINE CAN MESSAGE INCORRECT
- TCM - ENGINE CAN MESSAGE INCORRECT

Test 1 - Test 2:

Test 3 - Test 4: