Pinpoint Test B : B1B57: 11
- NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.
Normal Operation and Fault Conditions
The PAM supplies voltage to the front parking aid sensors via a common circuit.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition PAM B1B57: 11 Front Sensors Power Circuit: Circuit Short To Ground A continuous and on-demand DTC that sets in the PAM when the front sensor voltage supply circuit is shorted to ground or to the signal return circuit. Possible Sources
- Wiring, terminals or connectors
- Front Parking aid sensor
- PAM
- B1 CHECK THE FRONT BUMPER WIRING HARNESS
- 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 LHF (LEFT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: LHF Outer Parking Aid Sensor C1428.
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and carry out the PAM self-test.
Is DTC B1B57: 11 still present?
Yes GO to B3 No INSTALL a new LHF outer parking aid sensor. - B3 CHECK THE LHF (LEFT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: LHF Inner Parking Aid Sensor C1429.
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B57: 11 still present?
Yes GO to B4 No INSTALL a new LHF inner parking aid sensor. - B4 CHECK THE RHF (RIGHT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RHF Outer Parking Aid Sensor C1431.
- Ignition ON.
- Using a diagnostic 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 RH front outer parking aid sensor. - B5 CHECK THE RHF (RIGHT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect: RHF Inner Parking Aid Sensor C1430.
- Ignition ON.
- Using a diagnostic 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 RHF inner parking aid sensor. - B6 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: PAM C4014B.
Is the resistance greater than 10, 000 ohms?
Yes GO to B7 No REPAIR the circuit. - B7 CHECK THE PARKING AID SENSOR HARNESS FOR A SHORT FROM VOLTAGE SUPPLY TO GROUND RETURN
Is the resistance greater than 10, 000 ohms?
Yes GO to B8 No REPAIR the circuits. - B8 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all PAM and related in-line 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 PAM and related in-line 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 TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSB addresses this concern, INSTALL a new PAM. REFER to: Parking Assist Control Module (PAM) . No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.