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Home >> Mercury >> 2005 >> Mountaineer 2WD V8-4.6L SOHC VIN W >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Tests - Instrument Cluster >> Test E: Incorrect Temperature Gauge Indication

Test E: Incorrect Temperature Gauge Indication

PINPOINT TEST E: INCORRECT TEMPERATURE GAUGE INDICATION


E1-E3:






Normal Operation
The powertrain control module (PCM) uses the engine coolant temperature (ECT) sensor or the cylinder head temperature sensor (CHT) to measure the engine coolant temperature through circuit 354 (LG/RD) or 1105 (YE/LB) respectively. The PCM provides the engine coolant temperature data to the instrument cluster over the communication network.

Possible Causes
- PCM
- instrument cluster