Normal Operation
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The stability/traction control switch is a normally open switch. When the switch is pressed, the instrument cluster senses ground through the switch and sends a message to the PCM along the high-speed controller area network (HS-CAN) bus to disable the traction assist system. The instrument cluster will also illuminate the traction control indicator on the instrument cluster.
The instrument cluster is connected to the stability/traction control switch along circuit CCA15 (YE/GY) and the switch is connected to ground along circuit GD111 (BK/BU).
- DTC C1093 Traction Control Disable Switch Circuit Failure - During normal operation, if the instrument cluster senses a short to ground on the traction control on/off circuit for more than 120 seconds or if during the on-demand self test, the instrument cluster senses a short to ground on the traction control on/off circuit, DTC C1093 will be set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Traction control switch
- Instrument cluster