The Parking Aid Switch Status Led (Light Emitting Diode) Is Inoperative Or Always On

K1 CHECK THE PARKING AID MODULE (PAM) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, retrieve the Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs).
Is DTC B1B54:11 present?
- Yes : GO to K2
- No : If the LED is inoperative, GO to K6
  If the LED is always on, GO to K4
K2 CHECK THE PARKING AID MODULE (PAM) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE SWITCH DISCONNECTED
- Ignition OFF.
- Disconnect Active Park Assist Switch.
- Ignition ON.
- Using a diagnostic scan tool, clear the Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs).
- Perform the Parking Aid Module (PAM) self-test.
Is DTC B1B54:11 still present?
- Yes : GO to K3
- No : INSTALL a new active park assist switch.
  REFER to: ACTIVE PARK ASSIST SWITCH .

K3 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.
Disconnect BCM C2280G .

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2489-8		Ground

Is the resistance greater than 10, 000 ohms?

Yes : GO to K9
No : REPAIR the circuit.

K4 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect BCM C2280G .
- Ignition ON.
Does the parking aid switch status LED continue to illuminate?
- Yes : GO to K5
- No : GO to K9

K5 MEASURE THE VOLTAGE ON THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT

Ignition OFF.
Disconnect Active Park Assist Switch.
Ignition ON.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2489-8		Ground

Is any voltage present?

Yes : REPAIR the circuit.
No : INSTALL a new active park assist switch.
REFER to: ACTIVE PARK ASSIST SWITCH .

K6: CHECK THE PARKING AID MODULE (PAM) DIAGNOSTIC TROUBLE CODES (DTCS) WITH THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT JUMPERED TO GROUND

Ignition OFF.
Disconnect Active Park Assist Switch.

Connect a fused jumper wire between:

Positive Lead	Measurement/Action	Negative Lead
C2489-8		C2489-1

Ignition ON.
Using the diagnostic scan tool, clear the Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs).
Perform the Parking Aid Module (PAM) self-test.

Is DTC B1B54:11 present?

Yes : REMOVE the fused jumper wire. INSTALL a new active park assist switch. REFER to: ACTIVE PARK ASSIST SWITCH .
No : REMOVE the fused jumper wire. GO to K7

K7 CHECK THE PARKING AID SWITCH STATUS LED (LIGHT EMITTING DIODE) CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect BCM C2280G.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2114-8		C2280G-34

Is the resistance less than 3 ohms?

Yes : GO to K8
No : REPAIR the circuit.

K8 CHECK THE PARKING AID SWITCH GROUND CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2114-1		Ground

Is the resistance less than 3 ohms?

Yes : GO to K9
No : REPAIR the circuit.

K9 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) 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.