PINPOINT TEST C: DTCs B1B44:12, B1B46:12, B1B48:12 AND B1B50:12
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- C1 RETRIEVE THE DTCs FROM THE PAM SELF-TEST
- Check the PAM DTCs from the self-test .
- Are multiple DTCs recorded?
- Yes: GO to C2.
- No:
For DTCs B1B44: 12, B1B46: 12, B1B48: 12 and B1B50: 12, GO to C3.
For all other DTCs, REFER to DTC CHARTS .
- C2 CHECK THE CONNECTORS FOR CORRECT LATCHING AND THE BUMPER WIRING HARNESS FOR DAMAGE
- Inspect the PAM and sensor connectors for correct latching by pulling on the latched connector .
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Are the connectors correctly latched and the bumper wiring harness OK?
- Yes: GO to C3.
- No: Correctly LATCH the connectors or REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. TEST the system for normal operation.
- C3 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO VOLTAGE
- Ignition OFF.
- Disconnect: Suspect Parking Aid Sensor C4009, C4010, C4011 or C4012.
- Disconnect: PAM C4014 .
- Ignition ON.
- Measure the voltage between the suspect parking aid sensor, harness side and ground as follows:REAR SENSOR CONNECTORS REFERENCE CHART
DTC Rear Sensor Connector-Pin Circuit B1B44: 12 RH outer C4011-2 VMP17 (YE/OG) B1B46: 12 RH inner C4012-2 VMP16 (YE/GY) B1B48: 12 LH outer C4009-2 VMP15 (YE/GN) B1B50: 12 LH inner C4010-2 VMP14 (WH/OG) - Is any voltage present?
- Yes: REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
- No: GO to C4.
- C4 CHECK THE PARKING AID SENSOR CIRCUITRY FOR A SHORT TOGETHER
- Measure the resistance between the suspect parking aid sensor pins, harness side as follows:DTC CHART
DTC Parking Aid Sensor Connector-Pin/Circuit Connector-Pin/Circuit B1B44: 12 RH outer C4011-2
VMP17 (YE/OG)C4011-1
LMP07 (BU/WH)B1B46: 12 RH inner C4012-2
VMP16 (YE/GY)C4012-1
LMP07 (BU/WH)B1B48: 12 LH outer C4009-2
VMP15 (YE/GN)C4009-1
LMP07 (BU/WH)B1B50: 12 LH inner C4010-2
VMP14 (WH/OG)C4010-1
LMP07 (BU/WH) - Is the resistance greater than 10,000 ohms?
- Yes:
If all sensor DTCs are set, GO to C5.
If one or more parking aid sensor(s) recorded DTCs, INSTALL a new sensor(s) for the one in question. REFER to PARKING AID SENSOR . CLEAR the DTCs. TEST the system for normal operation.
- No: REPAIR the circuits in question. CLEAR the DTCs. TEST the system for normal operation.
- Measure the resistance between the suspect parking aid sensor pins, harness side as follows:
- C5 CHECK FOR CORRECT PAM OPERATION
- Connect: All Disconnected Connectors.
- Disconnect the PAM connector .
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the PAM connector and make sure it seats correctly .
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new PAM . REFER to PARKING AID MODULE (PAM) . TEST the system for normal operation.
- No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.