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B1295-11






B1295-11-PTS SENSOR 8 - CIRCUIT 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.

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:
Vehicle in reverse and 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 a short to ground on the Park Assist Sensor Signal 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 (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT




1. Turn the ignition off.
2. Disconnect the Park Assist Sensor harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (X700) Park Assist Sensor Supply circuit.

Is the voltage above 8.0 volts?

Yes

- Go To 4

No

- Go To 3

3. CHECK THE (X700) 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 (X700) 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 (X700) Park Assist Sensor Supply circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE (D701) PARK ASSIST SENSOR 8 SIGNAL CIRCUIT FOR A SHORT TO GROUND WITH THE PARK ASSIST MODULE CONNECTED





NOTE: Perform this step with the Park Assist Module connected.

1. Measure the resistance between ground and the (D701) Park Assist Sensor 8 Signal circuit.

Is the resistance below 10K Ohms?

Yes

- Go To 5

No

- Go To 7

5. CHECK THE (D701) PARK ASSIST SENSOR 8 SIGNAL CIRCUIT FOR A SHORT TO GROUND WITH THE PARK ASSIST MODULE DISCONNECTED




1. Disconnect the Park Assist Module C2 harness connector.
2. Measure the resistance between ground and the (D701) Park Assist Sensor 8 Signal circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the short to ground in the (D701) Park Assist Sensor 8 Signal circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 6

6. CHECK THE (D701) PARK ASSIST SENSOR 8 SIGNAL CIRCUIT FOR A SHORT TO THE (X750) PARK ASSIST SENSOR GROUND CIRCUIT




1. Measure the resistance between the (D701) Park Assist Sensor 8 Signal circuit and the (X750) Park Assist Sensor Ground circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the short between the (D701) Park Assist Sensor 8 Signal circuit and the (X750) Park Assist Sensor Ground circuit.
- 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.

7. CHECK THE (D701) PARK ASSIST SENSOR 8 SIGNAL CIRCUIT FOR AN OPEN




1. Disconnect the Park Assist Module C2 harness connector.
2. Measure the resistance of the (D701) Park Assist Sensor 8 Signal circuit.

Is the resistance above 5.0 Ohms?

Yes

- Repair the open in the (D701) Park Assist Sensor 8 Signal circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 8

8. PARK ASSIST SENSOR




1. Turn the ignition on.
2. Reconnect the Park Assist Module C2 harness connector.
3. Connect a jumper wire across the (X700) Park Assist Sensor Supply and (D701) Park Assist Sensor 8 Signal circuits.
4. Turn the ignition on.
5. With the scan tool, read DTCs.

Does the scan tool display DTC: B1295-12-PTS SENSOR 8 - CIRCUIT 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.

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