Diagnostic Routine R

Diagnostic Routine R

Diagnostic Overview

B1B54:11, B1B54:12

REFER to Parking Aid System .

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Pinpoint Test

1. CHECK THE LED (Light-emitting Diode) CIRCUIT FOR A SHORT TO GROUND

1. Disconnect: Active Park Assist Switch

2. Disconnect: PAM (Parking Aid Module) C4014A.

3. Measure:





Is the resistance greater than 10,000 ohms?






2. CHECK THE LED (Light-emitting Diode) CIRCUIT FOR A SHORT TO VOLTAGE

1. Measure:





Is any voltage present?






3. CHECK THE LED (Light-emitting Diode) CIRCUIT FOR AN OPEN

1. Ignition OFF.





2. Measure:

Is the resistance less than 3 ohms?






4. CHECK THE ACTIVE PARK ASSIST SWITCH GROUND CIRCUIT FOR AN OPEN

1. Measure:





Is the resistance less than 3 ohms?






5. CHECK LED (Light-emitting Diode) INDICATOR FUNCTION WITH CIRCUIT BYPASSED

1. Connect: Active Park Assist Switch

2. Connect a fused jumper wire:





Does the LED (Light-emitting Diode) indicator illuminate?






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

1. Ignition OFF.

2. Disconnect and inspect all PAM (Parking Aid Module) connectors.

3. 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

4. Reconnect the PAM (Parking Aid Module) connectors. Make sure they seat and latch correctly.

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

Is the concern still present?