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Home >> Ford >> 2006 >> Ranger 4WD L4-2.3L VIN D >> Repair and Diagnosis >> Body and Frame >> Mirrors >> Testing and Inspection >> Pinpoint Tests >> Test C: A Single Mirror Does Not Function With Switch Logic
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Test C: A Single Mirror Does Not Function With Switch Logic

PINPOINT TEST C: A SINGLE MIRROR DOES NOT FUNCTION WITH SWITCH LOGIC


C1-C3:






C3-C5:






C6:






Normal Operation
Under normal operation, the exterior mirror control switch uses circuit 543 (DG), 540 (RD), 541 (DB) or 544 (VT) to control mirror movement.
- When power is received through circuit 543 (DG)/540 (RD) and grounded through 945 (YE/BK), LH/RH exterior will operate LEFT.
- When ground is received through circuit 543 (DG)/540 (RD) and powered through 945 (YE/BK), LH/RH exterior will operate RIGHT.
- When power is received through circuit 541 (DB)/544 (VT) and grounded through 945 (YE/BK), LH/RH exterior will operate UP.
- When ground is received through circuit 541 (DB)/544 (VT) and powered through 945 (YE/BK), LH/RH exterior will operate DOWN.

Possible Causes
- An open in circuit 541 (DB), 544 (VT), 543 (DG) or 540 (RD) between the exterior mirror control switch and either the LH or RH exterior rear view mirror
- Inoperative exterior mirror control switch
- Inoperative exterior mirror motor
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