The Audible Parking Aid Is Inoperative

A1 PERFORM A NETWORK TEST
- Ignition ON.
- Using a diagnostic scan tool, perform a network test.
Do all modules pass the network test?
- Yes : GO to A2
- No : REFER to: COMMUNICATIONS NETWORK .
A2 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PARKING AID MODULE (PAM) SELF-TEST
- Using the diagnostic scan tool, perform the Parking Aid Module (PAM) self-test.
Are any Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to the Parking Aid Module (PAM) DTC Chart .
- No : GO to A3
A3 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using the diagnostic scan tool, perform the IPC self-test.
Are any IPC Diagnostic Trouble Codes (DTCs) recorded?
- Yes : GO to A5
- No : REFER to: INSTRUMENTATION, MESSAGE CENTER AND WARNING CHIMES .
A4 VERIFY THAT THE PARKING AID IS ENABLED
- Verify the rear parking aid and front parking aid (if equipped) is enabled in the IPC message center.
Is the parking aid system enabled?
- Yes : GO to A5
- No : ENABLE the parking aid system.
A5 CHECK FOR CORRECT GEAR INPUT
- Apply the parking brake.
- Ignition ON.
- While monitoring the IPC PRNDL display, move the selector lever through the entire gear range.
Does the IPC PRNDL indicator match the selector lever position throughout the entire range?
- Yes : GO to A7
- No : REFER to: INSTRUMENTATION, MESSAGE CENTER AND WARNING CHIMES .
A6 CHECK THE AUDIO CHIMES
- Ignition OFF.
- Open the driver door.
- Place the headlamp switch in the ON position.
Does the warning chime operate through the audio system?
- Yes : GO to A7
- No : REFER to: INSTRUMENTATION, MESSAGE CENTER AND WARNING CHIMES .
A7 CHECK FOR CORRECT PARKING AID MODULE (PAM) OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM connectors.
- 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
- Reconnect the BCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes : CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
  REFER to: BODY CONTROL MODULE (BCM) .
- No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.