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Home >> Mercury >> 2005 >> Mountaineer 2WD V8-4.6L SOHC VIN W >> Repair and Diagnosis >> Body and Frame >> Mirrors >> Testing and Inspection >> Pinpoint Tests >> Test E: The Heated Exterior Mirror Does Not Defrost - Both Heated Exterior Mirrors

Test E: The Heated Exterior Mirror Does Not Defrost - Both Heated Exterior Mirrors

PINPOINT TEST E: THE HEATED EXTERIOR MIRROR DOES NOT DEFROST - BOTH HEATED EXTERIOR MIRRORS


E1-E3:






E3 Continued:






Normal Operation
Under normal operation when the rear window defrost is ON the heated exterior mirrors receive power from the heated grid relay through circuit 59 (DG/VT) and ground through circuit 1205 (BK).

Possible Causes
- Open in circuits 1205 (BK) or 59 (DG/VT).
- Damaged exterior mirror glass.
- Inoperative rear window defrost system.