VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1203
| DTC Code | DTC Name |
|---|---|
| C1203 | ECM Communication Circuit Malfunction |
DESCRIPTION
The circuit is used to send TRC/TRAC and VSC control information from the skid control ECU (brake actuator assembly) to the ECM, and engine control information from the ECM to the skid control ECU (brake actuator assembly) through the CAN communication system.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
C1203 |
ECM Communication Circuit Malfunction |
Engine, drive source and destination variations that are sent from the ECM do not match the ones of the skid control ECU (brake actuator assembly). |
|
PROCEDURE
CHECK PART NUMBER (ECM AND BRAKE ACTUATOR ASSEMBLY)
Check that the proper ECM is installed.
Result
Proceed to
Proper ECM is installed
Proper ECM are not installed (for 1AD-FTV)
Proper ECM are not installed (for 2AD-FHV)
Proper ECM are not installed (for 2AD-FTV)
Proper ECM are not installed (for 2AR-FE)
Proper ECM are not installed (for 3ZR-FAE)
Proper ECM are not installed (for 3ZR-FE)
CHECK BRAKE ACTUATOR ASSEMBLY
Check if the brake actuator assembly had been replaced before the DTC was recorded.
Result
Proceed to
The brake actuator assembly is not replaced
The brake actuator assembly is replaced
The brake actuator assembly is replaced PERFORM INITIALIZATION AND CALIBRATIONClick here
RECONFIRM DTC
Clear the DTC.
Chassis > ABS/VSC/TRC > Clear DTCs
Check if the same DTC is recorded.
Chassis > ABS/VSC/TRC > Trouble Codes
Result
Proceed to
DTC C1203 is not output
DTC C1203 is output
PERFORM INITIALIZATION AND CALIBRATION
Perform initialization and calibration.
Result
Proceed to
NEXT
RECONFIRM DTC
Clear the DTC.
Chassis > ABS/VSC/TRC > Clear DTCs
Check if the same DTC is recorded.
Chassis > ABS/VSC/TRC > Trouble Codes
Result
Proceed to
DTC C1203 is not output
DTC C1203 is output
DTC C1203 is not output END