Engine Control System Malfunction - Vehicle Stability Control System

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1201/51: Engine Control System Malfunction

DTC C1201/51 - Engine Control System Malfunction

DESCRIPTION

If a malfunction in the engine control system is detected, the operations of VSC and TRAC are prohibited by the fail safe function. When the signals from the engine are input normally, the fail safe is cancelled and the DTC is not stored.






INSPECTION PROCEDURE
NOTICE:
- When replacing the brake actuator assembly, perform zero point calibration. Calibration
- A road test means accelerating, decelerating, and turning the vehicle safely.

PROCEDURE

1. CHECK ENGINE CONTROL SYSTEM
(a) Check if an engine control system DTC is output DTC Check / Clear.
Result:






B -- INSPECT ENGINE CONTROL SYSTEM
A -- Continue to next step.
2. REPLACE ECM
(a) Turn the ignition switch off.
(b) Replace the ECM Removal.
NEXT -- Continue to next step.
3. RECONFIRM DTC
(a) Clear the DTC .
(b) Perform the road test.
(c) Check if the same DTC is recorded .
Result:






B -- END
A -- REPLACE BRAKE ACTUATOR ASSEMBLY