CAN communication is applied just for FTCSs( Full Traction Control Systems) installed in the vehicle for sending requirement data, such as Torque reduction, the number of fuel cut cylinders, and TCS control requests, to the Engine ECM & TCU. The Engine ECM performs fuel cut functions according to requests from the ABS ECU and retards ignition timing by torque reduction requests. The TCU maintains current gear positions during TCS control time, by not increasing power which causes a Kickdown shift.
The HECU checks the CAN RAM for normal TCS control, and sets this code if a CAN RAM malfunction is detected.
Item | Detecting Condition | Possible cause |
DTC Strategy | ● CAN RAM monitoring | ● Faulty HECU |
Detect Mode | ● Initial Check ● Outside the ABS control cycle ● Inside the ABS control cycle ● Diagnosis mode ● Failure mode | |
Enable Conditions | ● CAN Hardware failure. | |
Fail Safe | ● Inhibit the TCS/ESP control and allow the ABS/EBD control. Meanwhile, stop checking the TCS/ESP switch failure under the TCS/ESP control. ● The TCS/ESP warning lamps are activated. |
