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

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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:

Gauges and meters
The displayed content may differ depending on the type of meter. Vehicles with monochrome display Vehicles with color display Tachometer Displays the engine speed in revolutions per minute Multi-information display Presents the driver with a variety of driving-related d ...

Installation
1. INSTALL FRONT SEAT ASSEMBLY LH  Place the seat assembly in the cabin. NOTICE: Be careful not to damage the body.  Connect the connectors under the seat assembly.  Tighten the 2 bolts on the front side of the seat assembly. Torque: 37 N*m (375 kgf*cm, 27 ft.*lb ...

Check mode procedure
1. CHECK MODE (SIGNAL CHECK): DTC CHECK  Connect the intelligent tester to the DLC3. ) Turn the ignition switch to the ON position. ) Select the "SIGNAL CHECK", and proceed checking using the intelligent tester. NOTICE: Select the "SIGNAL CHECK" from the &q ...

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