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Home >> Mercury >> 2005 >> Mountaineer 2WD V8-4.6L SOHC VIN W >> Repair and Diagnosis >> Body and Frame >> Locks >> Power Locks >> Testing and Inspection >> Pinpoint Tests >> Test B: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry Keypad

Test B: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry Keypad

PINPOINT TEST B: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY KEYPAD


B1-B2:






B2-B4:






B4-B5:






Normal Operation
The vehicle security module receives digitally coded inputs from the remote keyless entry (RKE) keypad and operates the locks accordingly.

Possible Causes
- circuit 78 (LB/YE) open or short to ground
- circuit 122 (YE) open
- circuit 124 (BN) open
- RKE keypad
- vehicle security module