DTC 76

DTC 76 Delivered Torque PWM Signal Malfunction:

CIRCUIT DESCRIPTION
Traction control is simultaneously controlled by the EBTCM and the PCM. The PCM sends a "DELIVERED TORQUE" message via a Pulse Width Modulated (PWM) signal to the EBTCM confirming the delivered torque level for proper traction control system operation.

DTC WILL SET WHEN
DTC 76 can be set anytime when ignition voltage is present. A malfunction exists if the PWM signal is out of range or no signal is received for a period of 7.0 seconds.

ACTION TAKEN
A malfunction DTC is stored, TCS is disabled and the "TRACTION OFF" indicator lamp is turned "ON." ABS remains functional.

DTC CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Checks for proper voltage is being supplied from the PCM.
2. The J 39700 Pinout Box with the J 39700-25 adapter cable must be connected before this step is performed. This step checks for short to voltage in CKT 464.
3. Ensures malfunction was not due to physical damage of wiring and/or connectors.
4. The 39700 Pinout Box with the J 39700-25 adapter cable must be connected before this step is performed. This step checks for open in CKT 464.
5. Checks for short to ground in CKT 464.
6. Checks for possible poor terminal contact at the EBTCM.

DIAGNOSTIC AIDS
Possible causes:
^ Open in CKT 464.
^ CKT 464 shorted to ground or voltage.
^ Communication frequency problem.

It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.