Pinpoint Test G : B1B36: 12, B1B38: 12, B1B40: 12, B1B42: 12
- 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
REFER to: Parking Aid - System Operation and Component Description .
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition PAM B1B36: 12 Right Front Outer Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets in the PAM when the RHF outer parking aid sensor signal circuit is shorted to battery voltage. PAM B1B38: 12 Right Front Inner Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets in the PAM when the RHF inner parking aid sensor signal circuit is shorted to battery voltage. PAM B1B40: 12 Left Front Outer Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets in the PAM when the LHF outer parking aid sensor signal circuit is shorted to battery voltage. PAM B1B42: 12 Left Front Inner Sensor: Circuit Short To Battery A continuous and on-demand DTC that sets in the PAM when the LHF inner parking aid sensor signal circuit is shorted to battery voltage. Possible Sources
- Wiring, terminals or connectors
- Front parking aid sensor
- PAM
- G1 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.
- Check the PAM Diagnostic Trouble Codes (DTCs) from the self-test.
Are multiple parking aid sensor Diagnostic Trouble Codes (DTCs) recorded?
Yes GO to G2 No For Diagnostic Trouble Codes (DTCs) B1B36: 12, B1B38: 12, B1B40: 12 or B1B42: 12, GO to G3 For all other Diagnostic Trouble Codes (DTCs), REFER to Diagnostic Trouble Code (DTC) Chart in this information. - G2 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 G3 No REPAIR or INSTALL a new front bumper wiring harness. - G3 CHECK THE FRONT SENSOR CIRCUITRY FOR SHORTS TO VOLTAGE
- Ignition OFF.
- Disconnect: Suspect Parking Aid Sensor(s).
- Disconnect: PAM C4014B.
- Ignition ON.
Is any voltage present?
Yes REPAIR the circuit in question. No GO to G4 - G4 CHECK THE FRONT PARKING AID SENSOR SIGNAL AND VREF CIRCUITS FOR A SHORT TOGETHER
Is the resistance greater than 10, 000 ohms?
Yes If all the sensor Diagnostic Trouble Codes (DTCs) are set, GO to G5 If one or more (but not all) parking aid sensor(s) recorded Diagnostic Trouble Codes (DTCs), INSTALL a new sensor(s) for the one in question. No REPAIR the circuits in question. - G5 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.