Pinpoint Tests AC: The Transaxle Range Display Is Never On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AC: The Transaxle Range Display is Never On

Normal Operation

The Instrument Panel Cluster (IPC) receives the transaxle range status from the Transmission Control Module (TCM) over the High Speed Controller Area Network (HS-CAN) communication bus.

If the transaxle range status is missing from the TCM for less than 5 seconds, the transaxle range indicator displays the last selected range based upon the last good known message. If the transaxle range status information is missing from the TCM for 5 seconds or more, the IPC sets DTC U0101:00 and the transaxle range indicator is blank.

This pinpoint test is intended to diagnose the following:

- TCM concern
- IPC

PINPOINT TEST AC: THE TRANSAXLE RANGE DISPLAY IS NEVER ON

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AC1 VERIFY THE INTEGRATED CIRCUIT DISPLAY FUNCTIONS

- Ignition ON.
- Observe the odometer in the integrated display.
- Does the odometer display illuminate?

Yes
GO to AC2.

No
GO to Pinpoint Test A. Pinpoint Test A: The Instrument Panel Cluster (IPC) Is Inoperative

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AC2 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. For DTC U0101:00, GO to Pinpoint Test AN. Pinpoint Tests AM: DTC U0100:00 and P1607:87 Pinpoint Tests AN: DTC U0101:00

No
GO to AC3.

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AC3 RETRIEVE THE RECORDED DTCs FROM THE TCM SELF-TEST

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

Yes
REFER to Automatic Shifting Manual Transmission/Transaxle Testing and Inspection.

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

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