Antilock Brake System (ABS): 1352

1352 - YAW RATE/ACCELERATION SENSOR OVERVOLTAGE





When Monitored and Set Condition

- When Monitored: Ignition on.
- Set Condition: The Controller Antilock Brake (CAB) detects a Yaw Rate/Acceleration Sensor Overvoltage condition.





For a complete Antilock Brake System (ABS) Circuit Diagram Refer to BRAKES - SCHEMATICS And DIAGRAMS 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