Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 from the ECM to the skid control ECU through the CAN communication system.

INSPECTION PROCEDURE

1 CHECK PART NUMBER (ECM AND BRAKE ACTUATOR ASSEMBLY)

(a) Check that the proper ECM and brake actuator assembly (skid control ECU) are installed.

OK: Proper ECUs are installed.

REPLACE ECM

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 ...

Zero Point Calibration of Yaw Rate Sensor Undone
DESCRIPTION The skid control ECU receives signals from the yaw rate sensor via CAN communication system. Yaw rate sensor has the built-in deceleration sensor. If there is trouble in the b ...

Other materials:

Installation
1. INSTALL AMPLIFIER ANTENNA ASSEMBLY  Engage the 16 clamps to install the amplifier antenna assembly.  Install the 3 bolts. Connect the connectors. 2. INSTALL ROOF HEADLINING ASSEMBLY 3. INSTALL ANTENNA ASSEMBLY WITH HOLDER  Install the antenna assembly ...

Installation
1. INSTALL FRONT DOOR WINDOW FRAME MOULDING Remove the tape from the front door window frame moulding. Clean the contact surface of the vehicle body with white gasoline. Clean the outer circumference of the front door window frame moulding with white gasoline. Apply new double-si ...

Adjustment
1. VEHICLE PREPARATION FOR FOG LIGHT AIMING  Prepare the vehicle:  Ensure there is no damage or deformation to the body around the fog lights.  Fill the fuel tank.  Make sure that the oil is filled to the specified level.  Make sure that the coolant is fi ...

В© 2011-2022 Copyright www.tsienna.net