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:

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Release Actuator Circuit
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Removal
1. REMOVE TRANSFER CASE NO.1 PLUG (See page TF-8) 2. REMOVE TRANSFER DRAIN PLUG (a) Remove the transfer drain plug, drain gasket and bleed transfer oil. 3. REMOVE EXHAUST PIPE ASSEMBLY HINT: (See page EX-8) 4. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY HINT: (See page PR-3) 5. R ...

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