Operation CHARM: Car repair manuals for everyone.
Home >> Lincoln >> 2004 >> LS V8-3.9L VIN A >> Repair and Diagnosis >> Lighting and Horns >> Turn Signals >> Testing and Inspection >> Pinpoint Tests >> Test P
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Test P

PINPOINT TEST P: THE TURN SIGNAL LAMPS ARE INOPERATIVE


Test P1-P5:






Test P5-P6:






Normal Operation
The instrument cluster sends out a voltage reference signal through circuit 8-LG43 (WH/VT) to the multifunction switch. The return signal is carried through circuit 9-LG43 (BN/WH) (shared with the high beam circuit) back to the instrument cluster. When the multifunction switch is placed in the RH or LH turn positions, the voltage signal sent by the instrument cluster passes through a resistor within the multifunction switch (specific to LH and RH turn positions) before returning to instrument cluster.

Possible Causes
- circuit 8-LG43 (WH/VT) open or short to power
- multifunction switch
- instrument cluster
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