B1B44:96

Parking Aid

Pinpoint Test D: DTCs B1B44:96, B1B46:96, B1B48:96 And B1B50:96

Normal Operation

The Parking Aid Module (PAM) calculates the distance to an object by the use of 4 ultrasonic sensors mounted in the rear bumper. The parking aid sensors can detect obstructions in the path behind the vehicle.

The attenuation time for the rear parking aid sensors is the time required for a sensor to detect the distance to an object expressed in milliseconds (ms). A fault condition occurs when the signal or the attenuation time is out of normal range.





This pinpoint test is intended to diagnose the following:

- Parking aid sensor

- PAM (Parking Aid Module)

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 (Parking Aid Module) SELF-TESTS

- Retrieve the recorded PAM (Parking Aid Module) 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. Parking Aid

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 (Parking Aid Module) OPERATION

- Disconnect the PAM (Parking Aid Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the PAM (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 PAM (Parking Aid Module). 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.