Pinpoint Test B : B1B58:11
- NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.
Refer to Parking Aid for schematic and connector information.
Normal Operation and Fault Conditions
The PAM supplies voltage to the rear parking aid sensors via a common circuit.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition PAM B1B58:11 Rear Sensors Power Circuit: Circuit Short To Ground A continuous and on-demand DTC that sets when the rear sensor voltage supply circuit is shorted to ground or to the rear sensor ground circuit. Possible Sources
- Wiring, terminals or connectors
- Rear parking aid sensor
- PAM
- B1 CHECK THE BUMPER WIRING HARNESS
- Ignition OFF.
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
Is the bumper wiring harness OK?
Yes GO to B2 No REPAIR or INSTALL a new bumper wiring harness. - B2 CHECK THE LH (LEFT-HAND) REAR OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Disconnect LH Rear Outer Parking Aid Sensor C4009.
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?
Yes GO to B3 No INSTALL a new LH rear outer parking aid sensor. REFER to: Rear Outer Parking Aid Sensor . - B3 CHECK THE LH (LEFT-HAND) REAR INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect LH Rear Inner Parking Aid Sensor C4010.
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?
Yes GO to B4 No INSTALL a new LH rear inner parking aid sensor. REFER to: Rear Inner Parking Aid Sensor . - B4 CHECK THE RH (RIGHT-HAND) REAR INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect RH Rear Inner Parking Aid Sensor C4012.
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?
Yes GO to B5 No INSTALL a new RH rear inner parking aid sensor. REFER to: Rear Inner Parking Aid Sensor . - B5 CHECK THE RH (RIGHT-HAND) REAR OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
- Ignition OFF.
- Disconnect RH Rear Outer Parking Aid Sensor C4011.
- Ignition ON.
- Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.
Is DTC B1B58:11 still present?
Yes GO to B6 No INSTALL a new RH rear outer parking aid sensor. REFER to: Rear Outer Parking Aid Sensor . - B6 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect PAM C4014C.
- Measure:
Positive Lead Measurement / Action Negative Lead C4014C-11 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to B7 No REPAIR the circuit. - B7 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER
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 the PAM 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 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PAM. REFER to: Parking Assist Control Module (PAM) . 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.