B129D:96

Diagnostic Routine D

Diagnostic Overview

B129C:96 Or B129D:96

Refer to Wiring Diagram Set 131 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

Pinpoint Test

1. CHECK THE DTCs (Diagnostic Trouble Codes) FROM THE PAM (Parking Aid Module) SELF-TEST

1. Using a scan tool, perform PAM (Parking Aid Module) self-test.

Are DTCs (Diagnostic Trouble Codes) other than B129C:96 or B129D:96 recorded?

2. CHECK THE ACTIVE PARK ASSIST SENSOR OPERATION

NOTE: Make sure the area around the vehicle is clear of anything that can activate the active park assist sensors.

1. Clean the bumper and sensors with high-pressure water.

2. Carry out the azimuth system check. REFER to Azimuth System Check Active Park Assist.

3. Ignition ON.

4. Press the active park assist switch.

5. Monitor and record the PAM (Parking Aid Module) distance PIDs (Parameter Identifications) while moving a test object into and out of the azimuth field at each of the sensors.

Does the active park assist sensor detect the correct PID (Parameter Identification) distance according to the general specifications?

3. INSTALL A KNOWN GOOD SENSOR

1. Install a known good sensor for the suspect active park assist sensor.

2. Ignition ON.

3. Run on-demand self-test (required to clear certain DTCs (Diagnostic Trouble Codes)). Correct any unresolved DTCs (Diagnostic Trouble Codes). Clear all DTCs (Diagnostic Trouble Codes).

Is the concern still present?

4. CHECK FOR CORRECT PAM (Parking Aid Module) OPERATION

1. Disconnect and inspect the PAM (Parking Aid Module) connector.

2. Repair:

- corrosion (install new connector or terminals- clean module pins)
- damaged or bent pins- install new terminals/pins
- pushed-out pins- install new pins as necessary

3. Reconnect the PAM (Parking Aid Module) connector. Make sure it seats and latches correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?