B1291-11

B1291-11-PTS SENSOR 4-CIRCUIT SHORT TO GROUND





For a complete wiring diagram refer to the Wiring Information. Electrical Diagrams

NOTE: The numbering system for the park assist sensors allows for up to twelve sensors on the vehicle, six front and six rear. The sensors are numbered in a clockwise manner starting at the left front bumper. The left front sensor (if equipped with front park assist) is the number 1 sensor. The numbering continues in a clockwise direction around the vehicle. Since Chrysler Group vehicles use only four rear sensors, sensor numbers 7 and 12 are omitted, so the left rear sensor is the number 11 sensor.

- When Monitored:
While the vehicle is in drive at speeds less than 10 mph (16 km/h).

- Set Condition:
Sensor ring down time is too short (700 microsecs).





1. CHECK FOR ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read Park Assist Module DTCs.

Does the scan tool display this DTC as 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 chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST Body Verification Test

2. CHECK PARK ASSIST SENSOR 4 FOR A SHORT TO GROUND
1. Shift the transmission into park.
2. With the scan tool, erase DTCs.
3. Turn the ignition off.
4. Disconnect Park Assist Sensor 4.
5. Turn the ignition on.
6. Shift the transmission into Drive.
7. With the scan tool, read Park Assist Module DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 3

No

- Replace Park Assist Sensor 4.
- Perform the BODY VERIFICATION TEST Body Verification Test

3. CHECK THE (D707) PARK ASSIST SIGNAL 4 CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Park Assist Module C3 harness connector.
3. Measure the resistance between ground and the (D707) Park Assist Signal 4 circuit.

Is the resistance below 10K ohms?

Yes

- Repair the (D707) Park Assist Signal 4 circuit for a short to ground.
- Perform the BODY VERIFICATION TEST Body Verification Test

No

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