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Home >> Lincoln >> 2012 >> MKT Base, FWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - Vehicle Dynamic Systems >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test N: The Stability/Traction Control System Cannot be Disabled >> Normal Operation
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Normal Operation

When the stability/traction control switch is pressed, circuit CCA15 (YE/GY) is momentarily connected to ground circuit GD114 (BK/BU) through the Front Controls Interface Module (FCIM). The Instrument Panel Cluster (IPC) detects this ground and sends a signal to the PCM and the ABS module along the High Speed Controller Area Network (HS-CAN) bus to disable the stability/traction control system. The IPC will also illuminate the sliding-car icon.

If a MyKey™-restricted key is in use that has the AdvanceTrac® always-on feature configured to "on", the stability/traction control system cannot be disabled.

Because the stability/traction control switch is grounded through the FCIM, any concerns with the FCIM should be addressed before  diagnosing the stability/traction control switch.

This pinpoint test is intended to diagnose the following: 

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