Toyota RAV4 manuals

Toyota Sienna Service Manual: Engine Control System Malfunction

DTC C1201/51 Engine Control System Malfunction

DESCRIPTION

If trouble occurs the engine control system, the ECM transmits the abnormality to the skid control ECU.

The skid control ECU set this DTC and the skid control ECU prohibits TRAC and VSC control.

INSPECTION PROCEDURE

1 CHECK ENGINE CONTROL SYSTEM

(a) Check if the normal system code is recorded for engine control system.

Result

REPLACE ECM

Open or Short Circuit in ABS Solenoid Relay Circuit
DESCRIPTION The ABS solenoid relay is built in the brake actuator assembly. This relay supplies power to each ABS solenoid. If the initial check is OK, after the ignition switch is turned to t ...

ECM Communication Circuit Malfunction
DTC C1203/53 ECM Communication Circuit Malfunction DESCRIPTION The circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM, and engine control information fr ...

Other materials:

Noise Occurs
INSPECTION PROCEDURE 1 NOISE CONDITION Check in which direction the noise comes from (front left or right, or rear left or right). Check in which direction the noise comes from. OK: The location of the noise source can be determined 2 CHECK SPEAKERS Check the installation cond ...

Installation
HINT: Install the RH side by the same procedure as the LH side. 1. INSTALL FRONT DISC BRAKE CYLINDER SLIDE BUSH (a) Apply the lithium soap base glycol grease to a new front disc brake cylinder slide bush. (b) Install the cylinder slide bush to the bottom side of the front disc brake cyli ...

Installation
1. INSTALL YAW RATE AND DECELERATION SENSOR (a) Connect the yawrate sensor connector. (b) Install the yawrate sensor with the 2 bolts. Torque: 13 N*m (136 kgf*cm, 10 ft.*lbf) 2. INSTALL COWL SIDE TRIM BOARD RH (a) Install the nut with the cowl side trim board plate RH. 3. INSTALL FRONT ...

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