Pinpoint Test H: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test H: 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 (Instrument Panel Cluster) monitors the odometer rolling count input from the PCM and commands the odometer with a display in the message center display area.

If the IPC (Instrument Panel Cluster) does not receive the odometer rolling count data or if the rolling count data is deemed invalid from the PCM for less than 5 seconds, the IPC (Instrument Panel Cluster) displays the mileage based upon the last good known input.

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

If the Non-Volatile Memory (NVM) is corrupted, the message center displays ERROR.

NOTE: If DTC U0100:00 is set in the IPC (Instrument Panel Cluster), other observable symptoms may be an inoperative speedometer, tachometer, temperature gauge.

This pinpoint test is intended to diagnose the following:

- PCM concern

- IPC (Instrument Panel Cluster)

PINPOINT TEST H : THE ODOMETER IS INOPERATIVE

H1 CHECK FOR CORRUPTED NVM (Non-Volatile Memory)

- Ignition ON.

- Observe the message center display area.

Does the odometer display ERROR?

Yes
INSTALL a new IPC (Instrument Panel Cluster). REFER to Instrument Panel Cluster (IPC) . TEST the system for normal operation.

No
GO to H2.

H2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO (Key ON Engine OFF) 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
GO to H3.

H3 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

- Check for recorded DTCs from the IPC (Instrument Panel Cluster) self-test.

Are any DTCs recorded?

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

For DTC U0401:68, RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to Computers and Control Systems Information and Body Control Systems for a list of all DTCs.

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

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