PINPOINT TEST D: DTCs B1B44:96, B1B46:96, B1B48:96 AND B1B50:96

D1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS
- Retrieve the recorded PAM DTCs from the continuous and on-demand self-tests.
- Are parking aid DTCs other than B1B44:96, B1B46:96, B1B48:96 and B1B50:96 recorded?
- Yes : DIAGNOSE the other DTCs first. REFER to DTC CHARTS .
- No : GO to D2.
D2 CHECK THE PARKING AID SENSOR OPERATION
NOTE: Make sure the area around the vehicle is clear of anything that can activate the parking aid system.
- Clean the rear bumper and sensors with high-pressure water.
- Carry out the azimuth system check. Refer to AZIMUTH SYSTEM CHECK .
- Carry out the elevation system check. Refer to ELEVATION SYSTEM CHECK .
- Does the parking aid system pass both system checks?
- Yes : 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. TEST the system for normal operation.
- No : GO to D3.
D3 INSTALL A KNOWN GOOD SENSOR
- Ignition OFF.
- Install a new sensor for the suspect parking aid sensor.
- Ignition ON.
- Clear the DTCs. Repeat the self-test. Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : GO to D4.
- No : The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.
D4 CHECK FOR CORRECT PAM OPERATION
- Disconnect the PAM connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the PAM 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 PAM. REFER to PARKING AID MODULE (PAM) . TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REPEAT the self-test.