Engine Control System Malfunction - Vehicle Stability Control System (for BOSCH Made)

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for BOSCH Made): C1201/51: Engine Control System Malfunction
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 Fail-Safe Chart.

When the signals from the engine are input normally, the fail safe is cancelled and the DTC is not stored.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (ENGINE CONTROL SYSTEM)

(a) Clear the DTC (engine control system) Reading and Clearing Diagnostic Trouble Codes for 2AR-FE, Reading and Clearing Diagnostic Trouble Codes for 2GR-FE).

(b) Perform a road test.

(c) Check for the DTC (engine control system).

Result:





B -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS (ENGINE CONTROL SYSTEM)

A -- REPLACE ECM