Pinpoint Test I: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test I: 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 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 U0401:00 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 U3000:44 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 I: THE ODOMETER IS INOPERATIVE

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I1 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 I2.

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I2 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 I3.

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I3 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 BA. For DTC U3000:42 or DTC U3000:44, 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. Pinpoint Tests BA: DTC U0100:00

No
INSTALL a new PCM. REFER to Electronic Engine Controls Powertrain Control Module (PCM). TEST the system for normal operation.

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