Traction Control System (TCS) (Front Wheel Drive Only)

The Traction Control System (TCS) compares front wheel speeds to rear wheel speeds to determine if drive wheels lose traction. The TCS activates when drive wheel speed exceeds speed of non-drive wheels by a calibrated value. This allows the driver to maintain acceleration and directional stability while accelerating on low traction surfaces.

The TCS limits wheel slip during acceleration when one or more of the drive wheels lose traction. The brake switch must be off for TCS to operate.

During a traction event, the EBTCM sends a requested torque value to the ECM/TCM over the serial data link. The ECM/TCM initiates an engine torque reduction routine to slow down the drive wheels. This routine consists of ignition timing reduction, fuel injector cut-off and transmission shift control. The ECM/TCM also sends a torque delivered value to the EBTCM over the serial data link.

If the EBTCM detects a malfunction, it will disable TCS and will command the TCS LED off. The driver can also disable TCS, if desired, by pressing the TCS switch.