Component Location
General Description
The HECU sends requirement data, such as torque reduction, the number of fuel cut cylinders, and the ESC control request, to the PCM(ECM & TCM) through CAN bus line. The PCM(ECM) performs the fuel cut function according to a request signal from the HECU and then retards an ignition timing. The PCM(TCM) maintains current gear position during the ESC control period in order not to increase power which causes a Kickdown shift.
DTC Description
The HECU checks the CAN communcation lines for the normal ESP control, and sets this code if the data received from EMS is not the same with that from TCM.
DTC Detecting Condition
Item | Detecting Condition | Possible cause |
DTC Strategy | CAN message monitoring
| Faulty PCM(ECM) Faulty HECU |
Enable Conditions | Monitoring the error of Engin torque, TPS and pedal measurement in EMS message during driving.
|
Fail Safe | Inhibit the ESP control and allow the ABS/EBD control. The ESP warning lamp is activated.
|