Antilock Brake System (ABS): 1352

1352-YAW RATE/ACCELERATION SENSOR - OVER VOLTAGE





When Monitored and Set Condition
^ When Monitored: ignition on.
^ Set Condition: The Controller Antilock Brake (CAB) detects a Yaw Rate/Acceleration Sensor Over voltage condition.

POSSIBLE CAUSES
- ESP YAW RATE/LATERAL ACCELERATION SENSOR 5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
- ESP YAW RATE/LATERAL ACCELERATION SENSOR
- CONTROLLER ANTILOCK BRAKE (CAB)

For a complete Antilock Brake System (ABS) Circuit Diagram, (Refer to - BRAKES/ELECTRICAL - SCHEMATICS AND DIAGRAMS).

Diagnostic Test
1. MEASURE THE YAW RATE/ACCELERATION SENSOR 5 VOLT SUPPLY CIRCUIT





Turn the ignition off. Disconnect the Yaw Rate/Acceleration Sensor harness connector.

Note: Check connectors - Clean/repair as necessary.

Turn the ignition on. Measure the voltage of the Yaw Rate/Acceleration Sensor 5 Volt Supply circuit at the Yaw Rate/Acceleration Sensor harness connector.
Is the voltage above 5.0 volts?
Yes >> Go to 2
No >> Replace the Yaw Rate/Acceleration Sensor. Perform ABS VERIFICATION TEST. ABS Verification Test

2. MEASURE THE RESISTANCE BETWEEN GROUND AND THE YAW RATE/ACCELERATION SENSOR 5-VOLT SUPPLY CIRCUIT





With the ignition off. Disconnect the Controller Antilock Brake (CAB) harness connector.

Note: Check connectors - Clean/repair as necessary.

Measure the voltage of the Yaw Rate/Acceleration Sensor 5 Volt Supply circuit at the Yaw Rate/Acceleration Sensor harness connector.
Is the voltage above 5.0 volts?
Yes >> Repair the 5-Volt Supply circuit for a short to voltage. Perform ABS VERIFICATION TEST. ABS Verification Test
No >> Replace the Controller Antilock Brake (CAB) Module. Perform ABS VERIFICATION TEST. ABS Verification Test