Diagnostic Routine A

Diagnostic Routine A

Diagnostic Overview

The Active Park Assist Does Not Operate When Switch Is Pressed

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

Normal Operation and Fault Conditions

REFER to Active Park Assist Switch .

Pinpoint Test

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

1. VERIFY THE CUSTOMER CONCERN

1. Ignition ON.

2. Apply the brakes.

3. Select DRIVE.

4. While pressing the active park assist switch, monitor the IPC (Instrument Panel Cluster) message center.

Does the IPC (Instrument Panel Cluster) message center read "Active park searching"?






2. CHECK THE DTCs (Diagnostic Trouble Codes) FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM (Parking Aid Module) SELF-TESTS

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

Are any PAM (Parking Aid Module) DTCs (Diagnostic Trouble Codes) recorded?






3. CHECK THE ACTIVE PARK SWITCH GROUND CIRCUIT FOR AN OPEN

1. Disconnect: Active Park Assist Switch.

2. Measure:





Is the resistance less than 3 ohms?






4. CHECK THE ACTIVE PARK SWITCH SIGNAL CIRCUIT FOR AN OPEN

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

2. Measure:





Is the resistance less than 3 ohms?






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

1. Ignition OFF.

2. Disconnect and inspect the 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?