Pinpoint Test Ax: The Engine Temperature Gauge Is Inoperative
- AX1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Monitor the odometer, trip odometer, outside air temperature and compass display in the message center.
- Do the message center displays operate?
- Yes : GO to AX2.
- No : GO to PINPOINT TEST G .
- AX2 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 all other DTCs, REFER to DTC CHARTS .
- No : GO to AX3.
- AX3 CHECK THE ENGINE OVER-TEMPERATURE INDICATOR OPERATION
- Ignition OFF.
- Monitor the engine over-temperature indicator operation during the bulb prove-out.
- Ignition ON.
- Start the engine.
- Monitor the engine over-temperature indicator operation with the engine running after the bulb prove-out (approximately 3 seconds).
- Does the engine over-temperature indicator prove-out and operate correctly following the bulb prove-out?
- Yes : INSTALL a new PCM. REFER to ENGINE CONTROLS - ELECTRONIC ENGINE CONTROLS . TEST the system for normal operation.
- No : GO to PINPOINT TEST I .