Pinpoint Test B: B1B57:11: B1B57:11

B1 CHECK THE FRONT BUMPER WIRING HARNESS
- Ignition OFF.
- Inspect the front bumper wiring harness for opens, shorts, grounds, or corrosion.
Is the front bumper wiring harness OK?
- Yes : GO to B2
- No : REPAIR or INSTALL a new bumper wiring harness.
B2 CHECK THE LH (LEFT-HAND) FRONT OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Disconnect: LH Front Outer Parking Aid Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : GO to B3
- No : INSTALL a new LH front outer parking aid sensor.
  REFER to: FRONT PARKING AID SENSOR .
B3 CHECK THE LH (LEFT-HAND) FRONT INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect:LH Front Inner Parking Aid Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : If the vehicle is equipped with active park assist, GO to B4
  If the vehicle is NOT equipped with active park assist, GO to B6
- No : INSTALL a new LH front inner parking aid sensor.
  REFER to: FRONT PARKING AID SENSOR .
B4 CHECK THE LH (LEFT-HAND) FRONT ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: LH Front Active Park Assist Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : GO to B5
- No : INSTALL a new LH front active park assist sensor.
  REFER to: ACTIVE PARK ASSIST SWITCH .
B5 CHECK THE RH (RIGHT-HAND) FRONT ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RH Front Active Park Assist Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : GO to B6
- No : INSTALL a new RH front active park assist sensor.
  REFER to: ACTIVE PARK ASSIST SWITCH .
B6 CHECK THE RH (RIGHT-HAND) FRONT INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RH Front Inner Parking Aid Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : GO to B7
- No : INSTALL a new RH front inner parking aid sensor.
  REFER to: FRONT PARKING AID SENSOR .
B7 CHECK THE RH (RIGHT-HAND) FRONT OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RH Front Outer Parking Aid Sensor.
- Ignition ON.
- Using a scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57:11 still present?
- Yes : GO to B8
- No : INSTALL a new RH front outer parking aid sensor.
  REFER to: FRONT PARKING AID SENSOR .

B8 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.
Disconnect: BCM C2280C.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2280C-7		Ground

Is the resistance greater than 10, 000 ohms?

Yes : GO to B9
No : REPAIR the circuit.

B9 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement/Action	Negative Lead
C2280C-7		C2280C-35

Is the resistance greater than 10, 000 ohms?

Yes : GO to B10
No : REPAIR the circuits.

B10 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.