C100B-12

C100B-12-REAR OUTER LEFT SENSOR SHORT TO BATTERY

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Park Assist Sensors are ultrasonic transceivers that are completely controlled by the Park Assist Module. The sensors transmit and receive ultrasonic signals. Each sensor has a voltage, signal, and return circuit to the module. The sensors communicate with the Park Assist Module using a dedicated serial bus communication circuit. For more information on the Park Assist Sensors, Park Assist Sensor - Operation.

- When Monitored:
Vehicle in reverse.

During the self-test while vehicle is in drive between 18 km/h (11 mph) and 40 km/h (25 mph).

- Set Condition:
The Park Assist Module detects high voltage on the Park Assist Sensor Signal circuit.





1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. REAR OUTER LEFT SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY
1. Turn the ignition off.
2. Disconnect the Park Assist Module C2 harness connector.
3. Disconnect the Park Assist Sensor harness connector.
4. Turn the ignition on.
5. Measure the voltage of the Rear Outer Left Sensor Signal circuit.

Is the voltage above 10.0 volts?

Yes

- Repair the Rear Outer Left Sensor Signal circuit for a short to battery.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. REAR OUTER LEFT SENSOR SIGNAL CIRCUIT SHORTED TO THE REAR OUTER LEFT SENSOR SUPPLY CIRCUIT
1. Turn the ignition off.
2. Measure the resistance between the Rear Outer Left Sensor Signal circuit and the Rear Outer Left Sensor Supply circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the Rear Outer Left Sensor Signal circuit for a short to the Rear Outer Left Sensor Supply circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Park Assist Module. Park Assist Sensor - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.