B0955

DTC B0955

DTC DESCRIPTOR

DTC B0954 01
Parking Aid Front Sensor 1 Left Corner Circuit Short to Battery

DTC B0954 06
Parking Aid Front Sensor 1 Left Corner Circuit Short to Ground or Open

DTC B0954 08
Parking Aid Front Sensor 1 Left Corner Circuit Signal Invalid

DTC B0954 21
Parking Aid Front Sensor 1 Left Corner Circuit Incorrect Period

DTC B0955 01
Parking Aid Front Sensor 1 Left Middle Circuit Short to Battery

DTC B0955 06
Parking Aid Front Sensor 1 Left Middle Circuit Short to Ground or Open

DTC B0955 08
Parking Aid Front Sensor 1 Left Middle Circuit Signal Invalid

DTC B0955 21
Parking Aid Front Sensor 1 Left Middle Circuit Incorrect Period

DTC B0956 01
Parking Aid Front Sensor 1 Right Middle Circuit Short to Battery

DTC B0956 06
Parking Aid Front Sensor 1 Right Middle Circuit Short to Ground or Open

DTC B0956 08
Parking Aid Front Sensor 1 Right Middle Circuit Signal Invalid

DTC B0956 21
Parking Aid Front Sensor 1 Right Middle Circuit Incorrect Period

DTC B0957 01
Parking Aid Front Sensor 1 Right Corner Circuit Short to Battery

DTC B0957 06
Parking Aid Front Sensor 1 Right Corner Circuit Short to Ground or Open

DTC B0957 08
Parking Aid Front Sensor 1 Right Corner Circuit Signal Invalid

DTC B0957 21
Parking Aid Front Sensor 1 Right Corner Circuit Incorrect Period

DIAGNOSTIC FAULT INFORMATION

IMPORTANT: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Testing and Inspection

CIRCUIT/SYSTEM DESCRIPTION
The object alarm detection system senses how close the vehicle is to an object. The distance is determined by the 4 ultrasonic sensors located in the rear and front (if equipped) bumpers. The object detection system will notify the driver when backing up or moving forward while parking at speeds less than 8 km/h (5 mph), which make parking easier and helps you avoid colliding with objects such as parked vehicles. The object detection system will use indicators and the radio speakers for notification.

CONDITIONS FOR RUNNING THE DTC
Ignition voltage is between 9-16 volts.

CONDITIONS FOR SETTING THE DTC

B0954 01, B0955 01, B0956 01, or B0957 01
The object alarm module circuit is short to battery.

B0954 06, B0955 06, B0956 06, or B0957 06
The object alarm module circuit is short to ground or open.

B0954 08, B0955 08, B0956 08, or B0957 08
The object alarm module signal circuit is invalid.

B0954 21, B0955 21, B0956 21, or B0957 21
The object alarm module has an incorrect period.

ACTION TAKEN WHEN THE DTC SETS
- The object detection alarm module sets a DTC.
- The object detection alarm module commands ON the information center telltale red indicator.
- The object detection alarm module will send a serial data communication message to the instrument panel (I/P) to scroll SERVICE PARK ASSIST message on the driver information center (DIC), and the chime will sound.

CIRCUIT/SYSTEM TESTING

IMPORTANT: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.

- The front object alarm sensors
- The front and rear object alarm module
- The front object alarm sensor wiring harness connector
- The front and rear object alarm module wiring harness connector

1. Ignition OFF, disconnect the object alarm module connector.
2. Disconnect the front object alarm sensor. For DTC B0954 disconnect the left front corner object sensor, B0955 disconnect the left middle front sensor, B0956 disconnect the right middle front sensor, or B0957 disconnect the right front corner sensor.
3. Test the object sensor signal circuit between the each sensor and the front and rear object module for a short to ground, a short to voltage, a high resistance, or an open. Verify that a short to ground, a short to voltage, a high resistance, or an open does not exist.
- If any of the above conditions are found make the appropriate repair.
4. Test the object sensor supply voltage circuit between the each sensor and the front and rear object module for a short to ground, a high resistance, or an open. Verify that a short to ground, a high resistance, or an open does not exist.
- If any of the above conditions are found make the appropriate repair.
5. Test the object sensor low reference circuit between the each sensor and the front and rear object module for a short to voltage, a high resistance, or an open. Verify that a short to voltage, a high resistance, or an open does not exist.
- If any of the above conditions are found make the appropriate repair.
6. If all circuits test normal replace the front object alarm sensor, DTC B0954 replace the left front corner object sensor, B0955 replace the left middle front sensor, B0956 replace the right middle front sensor, or B0957 replace the right front corner sensor. After replacement refer to Repair Verification.

REPAIR INSTRUCTIONS
- Front Object Alarm Sensor Replacement for Front Object Alarm Sensor Replacement
- Control Module References for Object Alarm Module replacement, setup, and programming

REPAIR VERIFICATION
Ignition ON, use the scan tool to clear the DTCs then recheck for DTCs.
- If DTC B0954, B0955, B0956, or B0957 resets replace the front and rear object alarm module.