Pinpoint Test D : B1B44:14, B1B46:14, B1B48:14, B1B50:14
- D1 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the PAM self-test.
Are multiple rear parking aid sensor Diagnostic Trouble Codes (DTCs) recorded?
Yes GO to D2 No For DTC B1B44:14, B1B46:14, B1B48:14 or B1B50:14, GO to D3
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart: PAM . - D2 CHECK THE REAR BUMPER WIRING HARNESS
- Ignition OFF.
- Inspect the rear bumper wiring harness for opens, shorts, grounds, or corrosion.
Is the rear bumper wiring harness OK?
Yes GO to D3 No REPAIR or INSTALL a new rear bumper wiring harness. - D3 CHECK THE REAR PARKING AID SENSOR CIRCUITRY FOR OPENS
- Ignition OFF.
- Disconnect PAM C4014C .
- For DTC B1B44:14, measure:
Positive Lead Measurement / Action Negative Lead C4014C-11 C4011-1 C4014C-4 C4011-2 C4014C-8 C4011-3
- For DTC B1B46:14, measure:
Positive Lead Measurement / Action Negative Lead C4014C-11 C4012-1 C4014C-2 C4012-2 C4014C-8 C4012-3
- For DTC B1B48:14, measure:
Positive Lead Measurement / Action Negative Lead C4014C-11 C4009-1 C4014C-5 C4009-2 C4014C-8 C4009-3
- For DTC B1B50:14, measure:
Positive Lead Measurement / Action Negative Lead C4014C-11 C4010-1 C4014C-3 C4010-2 C4014C-8 C4010-3
Are the resistances of the suspect sensor circuits less than 3 ohms?
Yes GO to D4 No REPAIR the circuit in question. - D4 CHECK THE REAR PARKING AID SENSOR CIRCUITRY FOR SHORTS TO GROUND
- For DTC B1B44:14, measure:
Positive Lead Measurement / Action Negative Lead C4011-2 Ground
- For DTC B1B46:14, measure:
Positive Lead Measurement / Action Negative Lead C4012-2 Ground
- For DTC B1B48:14, measure:
Positive Lead Measurement / Action Negative Lead C4009-2 Ground
- For DTC B1B50:14, measure:
Positive Lead Measurement / Action Negative Lead C4010-2 Ground
Is the resistance greater than 10, 000 ohms for the sensor circuit in question?
Yes If all of the parking aid sensors recorded Diagnostic Trouble Codes (DTCs), GO to D5If one or more (but not all) parking aid sensor(s) recorded Diagnostic Trouble Codes (DTCs), INSTALL a new sensor(s) for the one(s) in question. REFER to: Rear Parking Aid Sensor . No REPAIR the circuit in question. - For DTC B1B44:14, measure:
- D5 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.