C100E-14

C100E-14-REAR OUTER RIGHT SENSOR OPEN CIRCUIT OR SHORT TO GROUND

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 11 mph (18 km/h) and 25 mph (40 km/h).

- Set Condition:
The Park Assist Module detects a short to ground or open on the Park Assist Sensor Signal circuit or an open on the Park Assist Sensor Supply circuit.





1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)

NOTE: A disconnected sensor will set this DTC. Verify the Park Assist Sensor is connected before proceeding with this diagnostic procedure.

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. CHECK THE VOLTAGE OF THE PARK ASSIST SENSOR SUPPLY CIRCUIT
1. Turn the ignition off.
2. Disconnect the Park Assist Sensor.
3. Turn the ignition on.
4. Measure the voltage of the Park Assist Sensor Supply circuit.

Is the voltage above 8.0 volts?

Yes

- Go To 4

No

- Go To 3

3. CHECK THE PARK ASSIST SENSOR SUPPLY CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the Park Assist Module C2 harness connector.
3. Measure the resistance of the Park Assist Sensor Supply circuit.

Is the resistance below 5.0 Ohms?

Yes

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

No

- Repair the open or high resistance in the Park Assist Sensor Supply circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE REAR OUTER RIGHT SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the Park Assist Module C2 harness connector.
2. Measure the resistance between ground and the Rear Outer Right Sensor Signal circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the short to ground in the Rear Outer Right Sensor Signal circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 5

5. CHECK THE REAR OUTER RIGHT SENSOR SIGNAL CIRCUIT FOR AN OPEN
1. Measure the resistance of the Rear Outer Right Sensor Signal circuit.

Is the resistance above 5.0 Ohms?

Yes

- Repair the open in the Rear Outer Right Sensor Signal circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 6

6. PARK ASSIST SENSOR
1. Turn the ignition on.
2. Reconnect the Park Assist Module C2 harness connector.
3. Connect a jumper wire across the Park Assist Sensor Supply and Rear Outer Right Sensor Signal circuits.
4. Turn the ignition on.
5. With the scan tool, read DTCs.

Does the scan tool display DTC: C100E-12-REAR OUTER RIGHT SENSOR SHORT TO BATTERY as active?

Yes

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

No

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