Pinpoint Test G: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test G: The Odometer Is Inoperative

Normal Operation

The Instrument Panel Cluster (IPC) receives the odometer rolling count data from the PCM over the High Speed Controller Area Network (HS-CAN) communication bus. The IPC monitors the odometer rolling count input from the PCM and commands the odometer with a display in the integrated circuit display area.

If the IPC does not receive the odometer rolling count data from the PCM for more than 5 seconds, the IPC sets DTC U0100:00 in continuous memory and defaults the odometer display to all dashes (-----). If the odometer rolling count data is deemed invalid by the IPC for 5 seconds or more, the IPC sets DTC U0401:68 and defaults the odometer display to all dashes (-----).

NOTE: If DTC U0100:00 sets in the IPC, other observable symptoms may be an inoperative speedometer or tachometer.

This pinpoint test is intended to diagnose the following:

- PCM concern
- IPC

PINPOINT TEST G: THE ODOMETER IS INOPERATIVE

-------------------------------------------------
G1 RETRIEVE THE RECORDED DTCs FROM THE KOEO PCM SELF-TEST

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

Yes
REFER to Computers and Control Systems.

No
GO to G2.

-------------------------------------------------
G2 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

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

Yes
For DTC U0100:00, GO to Pinpoint Test AM. Pinpoint Tests AM: DTC U0100:00 and P1607:87

For all other DTCs, REFER to DTC Charts.

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

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