Normal Operation
WARNING: This page is about a different car, the 2010 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
The traction control system can be disabled by pressing the traction control switch located on the instrument panel. When the system is disabled, the traction control/stability assist indicator (sliding-car icon) in the Instrument Cluster (IC) will illuminate solidly.
The IC sends 5 volts to the traction control switch along circuit CCA15 (YE/GY). When the traction control switch is pressed, this voltage is sent through the switch and to ground along circuit GD134 (BK/VT). When the IC detects this ground, it sends a message to the PCM and the ABS module along the High Speed Controller Area Network (HS-CAN) bus that the driver has disabled the system.
- DTC C1093 (Traction Control Disable Switch Circuit Failure) - If the traction control switch closed for more than 2 minutes or if there is a short to ground on circuit CCA15 (YE/GY) during normal operation, DTC C1093 will be set. If the traction control switch closed during the IC self-test and for more than 2 minutes in during normal operation, DTC C1093 will be set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Traction control switch
- IC