Pinpoint Test H : The Temperature Gauge Is Inoperative: Notes
Normal Operation and Fault Conditions
See Temperature Gauge. Refer to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
NOTE:
If DTC U0100:00 sets in the IPC, other observable symptoms can be an inoperative tachometer, speedometer or odometer.
If the BCM does not receive the engine coolant temperature message from the PCM for longer than 5 seconds, the BCM and IPC set DTC U0100:00.
If the IPC does not receive the engine coolant temperature message from the BCM for longer than 5 seconds, the IPC defaults the temperature gauge to cold (C).
Possible Sources
- BCM concern
- PCM
- IPC