Toyota RAV4 manuals

Toyota Sienna Service Manual: Problem symptoms table

If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.

NOTICE: When replacing the brake actuator assembly, sensor, etc., turn the ignition switch off.

HINT: Inspect the fuse and relay before investigating the suspected areas as shown in the table below. Inspect each malfunction circuit in numerical order for the corresponding symptom.

Anti-lock brake system:

Anti-lock brake system

Terminals of ecu

Test mode procedure
1. SPEED SENSOR SIGNAL CHECK (WHEN USING SST CHECK WIRE): HINT: If the ignition switch is turned from the ON to the ACC or LOCK position during Test Mode, the DTCs of the signal check functio ...

Diagnosis system
1. DESCRIPTION (a) Release the parking brake pedal. (b) Check the warning lights. When ignition switch is turned ON, check that the ABS warning light and brake warning light come on for 3 ...

Other materials:

Center Airbag Sensor Assembly Communication Circuit Malfunction
DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction DESCRIPTION The center airbag sensor assembly communication circuit consists of the occupant classification ECU and the center airbag sensor assembly. DTC B1790 is recorded when a malfunction is detected in the center ...

Front Clearance Sonar Sensor LH Circuit
DESCRIPTION An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU. WIRING DIAGRAM INSPECTION PROC ...

Half Connection in Center Airbag Sensor Assembly Connectors
DTC B1135/24 Half Connection in Center Airbag Sensor Assembly Connectors DESCRIPTION The center airbag sensor assembly connector has a mechanism that electrically detects half connection. The center airbag sensor assembly monitors the voltage applied to the disconnection detection pins and ...

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