Explorer Sport Trac 4WD V8-4.6L (2008)
C1-C2
Test D: The Message Center Switch Does Not Operate Correctly (High Series Instrument Cluster
[IC])
PINPOINT TEST D: THE MESSAGE CENTER SWITCH DOES NOT OPERATE CORRECTLY (HIGH SERIES INSTRUMENT
CLUSTER [IC])
Normal Operation
The message center switch uses circuit CMC29 (GN/VT) to communicate the requested switch function to the instrument cluster (IC) message center.
The message center switch is grounded through circuit RMC32 (GN/BU). Each message center switch uses a different resistance value allowing the
instrument cluster (IC) to determine which switch is pressed.
This pinpoint test is intended to diagnose the following:
-
Wiring, terminals or connectors
-
Message center switch
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Instrument cluster (IC)