Pinpoint Test H: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

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). The IPC monitors the odometer rolling count input from the PCM and commands the odometer with a display in the message center display.

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, the IPC sets DTC U0401:86 and defaults the odometer display to all dashes (-----).

If the Non-Volatile Memory (NVM) becomes corrupted or if any NVM failure occurs, the IPC sets DTC U3000:04 and displays ERROR in the message center display.

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

This pinpoint test is intended to diagnose the following:

- PCM
- IPC

PINPOINT TEST H: THE ODOMETER IS INOPERATIVE

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H1 CHECK FOR CORRUPTED NVM

- Ignition ON.
- Observe the message center display area.
- Does the odometer display ERROR?

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

No
GO to H2.

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H2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO 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. TEST the system for normal operation.

No
GO to H3.

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H3 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 AT Pinpoint Tests AT: DTC U0100:00. For DTC U3000:04, INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation. For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes

No
INSTALL a new PCM. REFER to Electronic Engine Controls Service and Repair. TEST the system for normal operation.

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