Pinpoint Test AP: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AP: The Odometer Is Inoperative

Normal Operation

The Instrument Cluster (IC) receives voltage from the Central Junction Box (CJB) through the RUN circuit. The instrument cluster receives the odometer rolling count from the PCM over the High Speed Controller Area Network (HS-CAN). If the IC receives invalid odometer data from the PCM, the odometer displays all dashes (----) and sets DTC U2023.

This pinpoint test is intended to diagnose the following:

- PCM
- IC

PINPOINT TEST AP: THE ODOMETER IS INOPERATIVE

-------------------------------------------------
AP1 CHECK FOR CORRUPTED NON-VOLATILE MEMORY (NVM)


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

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

No
GO to AP2.

-------------------------------------------------
AP2 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 PCM DTCs recorded?

Yes
REFER to Computers and Control Systems.

No
GO to AP3.

-------------------------------------------------
AP3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST


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

Yes
For DTC U1900, REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test.

If DTC U1900 is still present, REFER to Module Communications Network Testing and Inspection.

For DTC U2023, RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to Computers and Control Systems.

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

No
If the odometer is inoperative for base cluster, GO to AP4.

If the odometer is inoperative for message center cluster, GO to AP5.

-------------------------------------------------
AP4 MONITOR THE DISPLAY SEGMENT CONTROL DISPLAY (BASE CLUSTER)


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger .
- Select the IC display segment control (SEGMENTS_2) active command and illuminate the display segments.
- Do the display segments illuminate correctly?

Yes
INSTALL a new PCM. REFER to Electronic Engine Controls Service and Repair. TEST the system for normal operation.

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

-------------------------------------------------
AP5 CHECK THE MESSAGE CENTER DISPLAY


- Ignition ON.
- Operate the message center through all of the display functions.
- Do all of the message center displays illuminate correctly?

Yes
INSTALL a new PCM. REFER to Electronic Engine Controls Service and Repair. TEST the system for normal operation.

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

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