Test E: Incorrect Temperature Gauge Indication
PINPOINT TEST E: INCORRECT TEMPERATURE GAUGE INDICATIONNormal Operation
The PCM receives the engine coolant temperature status through hardwired circuitry from the cylinder head temperature (CHT) sensor. The instrument cluster (IC) receives the engine coolant temperature data from the PCM over the high speed controller area network (HS-CAN). The instrument cluster (IC) monitors the engine coolant temperature data received from the PCM and commands the temperature gauge with a corresponding movement of the gauge pointer.
This pinpoint test is intended to diagnose the following:
- CHT sensor
- PCM
- Instrument cluster (IC)
