General Information

Component Location





General Description

The HECU sends requirement data, such as Torque reduction, the number of fuel cut cylinders, and TCS control requests, to the Engine PCM (ECM & TCM) through CAN bus line.
The Engine PCM (ECM) performs fuel cut functions according to requests from the HECU and retards ignition timing by torque reduction requests.
The PCM (TCM) maintains current gear positions during TCS control time, in order not to increase power which causes a Kickdown shift.

DTC Description

The HECU checks the CAN RAM for normal TCS control, and sets this code if a CAN RAM malfunction is detected.

DTC Detecting Condition