PINPOINT TEST E: DTCs C1701, C1704, C1707 AND C1710 PARKING AID SENSOR FAULT
- E1 CHECK FOR RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS
- Check for recorded parking aid module DTCs from the continuous and on-demand self-tests.
- Are multiple DTCs recorded?
Yes : GO to E2.
No : GO to E4.
- E2 CHECK THE BUMPER WIRING HARNESS
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper wiring harness OK?
Yes : GO to E3.
No : REPAIR or INSTALL a new bumper wiring harness. REPEAT the self-test.
- E3 DETERMINE THE CONDITION NOTE: Make sure the area around the vehicle is clear of anything that may activate the parking aid system.
- Apply the parking brake.
- With the brake pedal applied, shift the transmission into REVERSE.
- Does the parking aid sound a continuous or intermittent tone when no obstacles are present?
Yes : GO to E6.
No : GO to E4.
- E4 MONITOR THE PARKING AID PID NOTE: Make sure the area around the vehicle is clear of anything that may activate the parking aid system.
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: Parking Aid PID.
- With the brake pedal pressed, shift the transmission into REVERSE and monitor the parking aid sensor distance PID. The PIDs read 255 cm (100 in) on a correctly functioning sensor.
- Does the PID read 255 cm (100 in)?
Yes : GO to E5.
No : GO to E6.
- E5 VERIFY THE SUSPECTED SENSOR ALIGNMENT
- Make sure the suspect parking aid sensor is the correct sensor.
- Make sure the suspect parking aid sensor is flush-mounted in the bezel.
- Make sure the suspect parking aid sensor is in alignment. Align the sensor if necessary. Refer to both the AZIMUTH SYSTEM CHECK and ELEVATION SYSTEM CHECK .
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: Parking Aid PID.
- With the brake pedal applied, shift the transmission into REVERSE and monitor the parking aid sensor distance PID. The PID reads 255 cm (100 in) on a correctly functioning sensor.
- Does the PID read 255 cm (100 in)?
Yes : The system is operating normally at this time. CLEAR the DTCs. REPEAT the self-test.
No : GO to E6.
- E6 CHECK THE BUMPER FOR DEBRIS NOTE: Make sure the area around the vehicle is clear of anything that might activate the parking aid system.
- Clean the rear bumper and sensors with high-pressure water.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes : GO to E7.
No : The system is operating correctly at this time. The concern may have been caused by a dirty or blocked parking aid sensor. CLEAR the DTCs. REPEAT the self-test.
- E7 CHECK THE PARKING AID SENSOR OPERATION
- Move the vehicle to an open area, free of obstacles.
- Key in ON position.
- Check the parking aid sensor distance and attenuation PIDs.
- Do the parking aid sensor distance PIDs read 255 cm (100 in), and the attenuation PIDs read between 0 and 16?
Yes : GO to E8.
No : INSTALL a new parking aid sensor. REFER to PARKING AID SENSOR . CLEAR the DTCs. REPEAT the self-test.
- E8 CHECK FOR CORRECT PARKING AID MODULE OPERATION
- Disconnect the parking aid module connector.
- Check for:
- corrosion
- pushed-out pins
- Connect the parking aid module connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
Yes : INSTALL a new parking aid module. REFER to PARKING AID MODULE . REPEAT the self-test. CARRY OUT the diagnostic tool data link test.
No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.