Dtc C1201 Engine Control System Malfunction

Brake. Corolla. Zre142 Aze141
Brake Control Dynamic Control Systems. Corolla. Zre142 Aze141

DESCRIPTION

INSPECTION PROCEDURE

CHECK ENGINE CONTROL SYSTEM

DTC C1201 Engine Control System Malfunction


DESCRIPTION

If the engine control system is malfunctioning, VSC and TR(A)C operations are prohibited, as a fail safe function. If a normal signal is received from the engine control system, the fail safe function cancelled and the DTC will be cleared.

DTC Code
DTC Detection Condition
Trouble Area
C1201
Engine control system malfunction signal continues for 1 second or more.
Engine control system

INSPECTION PROCEDURE

1.CHECK ENGINE CONTROL SYSTEM

  1. Check if any engine control system DTC is output (COROLLA_ZRE142 RM000000PDK0ZBX.html for 2AZ-FE, or COROLLA_ZRE142 RM000000PDK0ZAX.html for 2ZR-FE).

    Result:

    Result
    		Proceed to
    DTC is not output (for 2AZ-FE)
    		A
    DTC is not output (for 2ZR-FE)
    		B
    DTC is output (for 2AZ-FE)
    		C
    DTC is output (for 2ZR-FE)
    		D


B
REPLACE ECM (for 2ZR-FE) (COROLLA_ZRE142 RM000001CN0030X.html)

C
INSPECT ENGINE CONTROL SYSTEM (for 2AZ-FE) (COROLLA_ZRE142 RM000000PDF0G9X.html)

D
INSPECT ENGINE CONTROL SYSTEM (for 2ZR-FE) (COROLLA_ZRE142 RM000000PDF0G8X.html)
A

REPLACE ECM (for 2AZ-FE) (COROLLA_ZRE142 RM000002WT506MX.html)