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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Steering Wheel And Column Electrical Components (Except Electric)) >> Diagnosis And Testing >> Steering Wheel and Column Electrical Components >> Pinpoint Tests >> Pinpoint Test B : No Power In Acc - Conventional Ignition Switch >> Notes

Pinpoint Test B : No Power In Acc - Conventional Ignition Switch: 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 Distribution for schematic and connector information.

Normal Operation and Fault Conditions 

When in ACC mode, the ignition switch sends voltage to the BCM. The BCM then sends out an ignition status message on the MS-CAN and HS-CAN.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B102F:2F Auxiliary Switch: Signal Erratic The BCM monitors the ACC circuit input from the ignition switch during a self-test. This DTC sets if the BCM detects invalid input from the ignition switch.

Possible Causes 

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