PINPOINT TEST B: DTCs B1B44:01, 96 B1B46:01, 96 B1B48:01, 96 B1B50:01, 96
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- B1 RETRIEVE THE DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS
- Check the PAM DTCs from the continuous and on-demand self-tests.
- Are multiple DTCs recorded?
- Yes : GO to B2.
- No
: For DTCs B1B44:01, B1B44:96, B1B46:01, B1B46:96, B1B48:01, B1B48:96, B1B50:01 or B1B50:96, GO to B3.
For all other DTCs, REFER to DTC CHARTS .
- B2 CHECK THE BUMPER WIRING HARNESS
- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper wiring harness OK?
- Yes : GO to B3.
- No : REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. REPEAT the self-test.
- B3 CHECK THE SENSOR CIRCUITRY FOR OPENS
- Ignition OFF.
- Disconnect: Suspect Parking Aid Sensor C4009, C4010, C4011 or C4012.
- Disconnect: PAM C3267.
- Measure the resistance between the PAM
C3267, harness side and the suspect parking aid sensor, harness side as follows:DTC CHART
DTC Rear Sensor PAM Connector-Pin Sensor Connector-Pin Circuit B1B44:01, 96 RH outer C3267-9 C4011-1 VMP17 (YE/OG) B1B44:01, 96 RH outer C3267-13 C4011-3 RMP07 (GN/WH) B1B46:01, 96 RH inner C3267-10 C4012-1 VMP16 (YE/GY) B1B46:01, 96 RH inner C3267-13 C4012-3 RMP07 (GN/WH) B1B48:01, 96 LH outer C3267-12 C4009-1 VMP15 (YE/GN) B1B48:01, 96 LH outer C3267-13 C4009-3 RMP07 (GN/WH) B1B50:01, 96 LH inner C3267-11 C4010-1 VMP14 (WH/OG) B1B50:01, 96 LH inner C3267-13 C4010-3 RMP07 (GN/WH) - Are the resistances less than 5 ohms?
- Yes : GO to B4.
- No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
- B4 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO GROUND
- Measure the resistance between the suspect parking aid sensor, harness side and ground as follows:DTC CHART
DTC Rear Sensor Connector-Pin Circuit B1B44:01, 96 RH outer C4011-1 VMP17 (YE/OG) B1B46:01, 96 RH inner C4012-1 VMP16 (YE/GY) B1B48:01, 96 LH outer C4009-1 VMP15 (YE/GN) B1B50:01, 96 LH inner C4010-1 VMP14 (WH/OG) - Is the resistance greater than 10,000 ohms?
- Yes : GO to B5.
- No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
- Measure the resistance between the suspect parking aid sensor, harness side and ground as follows:
- B5 CHECK THE SENSOR CIRCUITRY FOR SHORTS TO VOLTAGE
- Ignition ON.
- Measure the voltage between the suspect parking aid sensor, harness side and ground as follows:DTC CHART
DTC Rear Sensor Connector-Pin Circuit B1B44:01, 96 RH outer C4011-1 VMP17 (YE/OG) B1B46:01, 96 RH inner C4012-1 VMP16 (YE/GY) B1B48:01, 96 LH outer C4009-1 VMP15 (YE/GN) B1B50:01, 96 LH inner C4010-1 VMP14 (WH/OG) - Is the voltage greater than 8 volts?
- Yes : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
- No
: If all of the parking aid sensors recorded DTCs, GO to B6.
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. REPEAT the self-test.
- B6 CHECK FOR CORRECT PAM OPERATION
- 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.