Chime/Buzzer

900C-LOSS OF COMMUNICATION WITH PTS SENSOR 3





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

With the ignition on.

- Set Condition:

The Park Assist Module has lost communication with the Park Assist Sensor.






Diagnostic Test

1. CHECK FOR ACTIVE DTC

Turn the ignition on.

With the scan tool, read DTCs.

Is the DTC active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.


2. FRONT PARK ASSIST SENSOR SUPPLY CIRCUIT OPEN





Turn the ignition off.

Disconnect the Park Assist Sensor harness connector.

Turn the ignition on.

Measure the voltage of the Front Park Assist Sensor Supply circuit.

Is the voltage above 10 Volts?

Yes

- Go To 3

No

- Repair the Front Park Assist Sensor Supply circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests


3. FRONT PARK ASSIST SENSOR GROUND CIRCUIT OPEN





Turn the ignition off.

Measure the resistance between ground and the Front Park Assist Sensor Ground circuit.

Is the resistance below 10K ohms?

Yes

- Go To 4

No

- Repair the Front Park Assist Sensor Ground circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests


4. FRONT PARK ASSIST SENSOR SIGNAL CIRCUIT





Turn the ignition on.

Measure the voltage on the Front Park Assist Sensor Signal circuit.

Is the voltage above 10.0 volts?

Yes

- Replace the Park Assist Sensor.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Go To 5


5. PARK ASSIST SENSOR





Disconnect the Park Assist Module harness connector.

Measure the resistance of the Front Park Assist Sensor Signal circuit.

Is the resistance below 10K ohms?

Yes

- Replace the Park Assist Module.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Repair the Front Park Assist Sensor Signal circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests