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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1601 (Handles, Locks, Latches And Entry Systems (Except Electric) (2 Of 2)) >> Diagnosis And Testing >> Locks, Latches and Entry Systems - Vehicles With: One-Touch Open and Close Front Windows >> Pinpoint Tests >> Pinpoint Test J : The Door Locks Operate Only One Way >> Notes

Pinpoint Test J : The Door Locks Operate Only One Way: Notes

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Power Door Locks for schematic and connector information.

Normal Operations and Fault Conditions 

REFER to: Handles, Locks, Latches and Entry Systems - Vehicles With: One-Touch Open and Close Front Windows - System Operation and Component Description .

BCM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B1C37:11 Master Lock Switch: Circuit Short To Ground A continuous DTC that sets when the BCM detects a short to ground from the lock request input circuit
B1C37:23 Master Lock Switch: Signal Stuck Low An on-demand DTC that sets when the BCM detects a short to ground from the lock request input circuit
B1C38:11 Master Unlock Switch: Circuit Short To Ground A continuous DTC that sets when the BCM detects a short to ground from the unlock request input circuit.
B1C38:23 Master Unlock Switch: Signal Stuck Low An on-demand DTC that sets when the BCM detects a short to ground from the unlock request input circuit.

Possible Source 

Visual Inspection and Diagnostic Pre-checks 

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