Pinpoint Tests AM: The Powertrain Malfunction (Wrench) Message Center Warning Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AM: The Powertrain Malfunction (Wrench) Message Center Warning Indicator Is Never/Always On (Non-Hybrid)

Normal Operation

The Instrument Panel Cluster (IPC) receives the powertrain malfunction data from the PCM for the Electronic Throttle Control (ETC) status and the transaxle status and from the 4X4 control module for the All-Wheel Drive (AWD) status over the High Speed Controller Area Network (HS-CAN) communication bus. When a fault condition exists in the ETC system or in the transaxle, the PCM provides the IPC with a message to turn the powertrain malfunction (wrench) warning indicator on. When a AWD fault condition exists, the 4X4 control module sends the IPC a message to turn the powertrain malfunction (wrench) warning indicator on.

If the ETC or transaxle message is missing for greater than 5 seconds, the IPC sets DTC U0100:00 and defaults the powertrain malfunction (wrench) warning indicator on.

If the AWD status message is missing for greater than 5 seconds, the IPC sets DTC U0102:00 and defaults the powertrain malfunction (wrench) warning indicator on.

NOTE: If U0100:00 is set in the IPC, other symptoms may also be present such as an inoperative speedometer, tachometer or temperature gauge.

This pinpoint test is intended to diagnose the following:

- ETC concern
- AWD concern
- Transaxle concern
- IPC


PINPOINT TEST AM: THE POWERTRAIN MALFUNCTION (WRENCH) MESSAGE CENTER WARNING INDICATOR IS NEVER/ALWAYS ON (NON-HYBRID)

-------------------------------------------------
AM1 CHECK THE MESSAGE CENTER OPERATION

- Close all doors and the luggage compartment lid.
- Ignition ON.
- Open the driver door while monitoring the message center displays.
- Does the message center display the door ajar message center warning indicator along with the DRIVER DOOR AJAR text?

Yes
GO to AM2.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.

-------------------------------------------------
AM2 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

- Check for recorded DTCs from the IPC self-test.
- Are any DTCs recorded?

Yes
For DTC U0100:00, GO to Pinpoint Test BF. Pinpoint Tests BF: DTC U0100:00

For DTC U0102:00, GO to Pinpoint Test BH. Pinpoint Tests BH: DTC U0102:00

For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes

No
GO to AM3.

-------------------------------------------------
AM3 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST

- Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any DTCs recorded?

Yes
DIAGNOSE all PCM DTCs first. REFER to Computers and Control Systems Information.

No
REPAIR all 4x4 module DTCs. TEST the system for normal operation.

-------------------------------------------------