Toyota Venza: Engine Control System Malfunction (C1201/51)

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / Engine Control System Malfunction (C1201/51)

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.

DTC Code	DTC Detection Condition	Trouble Area
C1201/51	Engine control system malfunction signal continues for 5 seconds.	Engine control system

PROCEDURE

1.	CHECK ENGINE CONTROL SYSTEM

(a) Check if the engine control system DTC is output (See page for 2GR-FE, or
for 1AR-FE).

Result	Proceed to
DTC is not output (for 2GR-FE)	A
DTC is not output (for 1AR-FE)	B
DTC is output (for 2GR-FE)	C
DTC is output (for 1AR-FE)	D

REPLACE ECM (for 2GR-FE)

REPLACE ECM (for 1AR-FE)

INSPECT ENGINE CONTROL SYSTEM (for 2GR-FE)

INSPECT ENGINE CONTROL SYSTEM (for 1AR-FE)

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