B1B36:14, B1B38:14, B1B40:14, B1B42:14
- H1 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PARKING AID MODULE (PAM) SELF-TEST
- Using a scan tool, perform the Parking Aid Module (PAM) self-test.
- Check the Parking Aid Module (PAM) Diagnostic Trouble Codes (DTCs) from the self-test.
Are multiple front parking aid sensor Diagnostic Trouble Codes (DTCs) recorded?
- Yes : GO to H2
- No
: For DTC
B1B36:14, B1B38:14, B1B40:14 or B1B42:14, GO to H3
For all other Diagnostic Trouble Codes (DTCs), REFER to the Parking Aid Module (PAM) DTC Chart .
- H2 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 H3
- No : REPAIR or INSTALL a new front bumper wiring harness.
- H3 CHECK THE FRONT PARKING AID SENSOR CIRCUITRY FOR OPENS
- Disconnect: Suspect Parking Aid Sensor(s).
- Disconnect: BCM C2280C.
- For DTC
B1B36:14, measure:
Positive Lead Measurement/Action Negative Lead C2280C-7 C1431-1 C2280C-21 C1431-2 C2280C-35 C1431-3 - For DTC
B1B38:14, measure:
Positive Lead Measurement/Action Negative Lead C2280C-7 C1430-1 C2280C-22 C1430-2 C2280C-35 C1430-3 - For DTC
B1B40:14, measure:
Positive Lead Measurement/Action Negative Lead C2280C-7 C1428-1 C2280C-31 C1428-2 C2280C-35 C1428-3 - For DTC
B1B42:14, measure:
Positive Lead Measurement/Action Negative Lead C2280C-7 C1429-1 C2280C-32 C1429-2 C2280C-35 C1429-3
Are the resistances of the suspect sensor circuits less than 3 ohms?
- Yes : GO to H4
- No : REPAIR the circuit in question.
- H4 CHECK THE FRONT PARKING AID SENSOR CIRCUITRY FOR SHORTS TO GROUND
- For DTC
B1B36:14, measure:
Positive Lead Measurement/Action Negative Lead C1431-2 Ground - For DTC
B1B38:14, measure:
Positive Lead Measurement/Action Negative Lead C1430-2 Ground - For DTC
B1B40:14, measure:
Positive Lead Measurement/Action Negative Lead C1428-2 Ground - For DTC
B1B42:14, measure:
Positive Lead Measurement/Action Negative Lead C1429-2 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 H5
If 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: FRONT PARKING AID SENSOR .
- No : REPAIR the circuit in question.
- For DTC
B1B36:14, measure:
- H5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM 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 BCM 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 Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM
.
REFER to: BODY CONTROL MODULE (BCM) .
- 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.