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Home >> Mercury Truck >> 2004 >> Mountaineer 2WD V6-4.0L VIN K Flex Fuel >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Tests - Instrument Cluster >> Test L

Test L

PINPOINT TEST L: THE SPEEDOMETER/ODOMETER IS INOPERATIVE


Test L1:






Test L2-L4:






Normal Operation
Vehicle speed information is sent to the instrument cluster by the PCM over the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). The instrument cluster will set DTC U1123 if it fails to receive the odometer rolling count data from the PCM over the CAN circuits. The instrument cluster will set DTC U1041 if the instrument cluster fails to receive speed input data from the PCM over the CAN network.

Possible Causes
- PCM
- instrument cluster
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