Pinpoint Test C : B1B44:00, B1B46:00, B1B48:00, B1B50:00
- C1 INSPECT THE PARKING AID SENSOR HARNESS AND CONNECTORS
- Ignition OFF.
-
NOTE: Before disconnecting any parking aid sensors or harness connectors, verify the connectors are properly seated and latched.
Inspect the parking aid sensor harness and connectors for the following:
- signs of water intrusion in the connectors - repair or install new components as necessary
- dirt or corrosion (install new connector or terminals - clean module pins)
- damaged connectors - install new components as necessary
- bent or pushed-out pins - install new terminals/pins as necessary
Is the harness OK?
Yes GO to C2 No REPAIR or REPLACE components as necessary. - C2 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Ignition ON.
- Using the diagnostic scan tool, perform the BCM self-test.
Are Diagnostic Trouble Codes (DTCs) B1B44:00, B1B46:00, B1B48:00 or B1B50:00 returned?
Yes Using a diagnostic scan tool, VIEW the symptom status parameter in the snapshot data for the associated sensor. For sensor is damaged or sensor is covered, GO to C3 For EMC interference with sensor, GO to C5 For sensor com line circuit open, sensor com line circuit short to ground or signal amplitude low, GO to C6 For wrong sensor mounted or sensor internal failure, GO to C10 No The concern is not present at this time, but may have been caused by snow, ice or dirt build-up on the sensors, corrosion of connector terminals or external electromagnetic interference. - C3 INSPECT THE PARKING AID SENSOR(S) FOR DAMAGE
- Clean the rear bumper cover and parking aid sensors with high pressure water.
- Visually inspect the parking aid sensors for proper installation and mechanical damage.
- Visually inspect the rear bumper cover area for stickers, non-OE paint, mechanical damage, tow bars, bike racks or other accessories that may be obstructing the parking aid sensors.
Are the parking aid sensors free from damage and obstructions?
Yes GO to C4 No REMOVE the obstruction if possible or INSTALL new parking aid sensor(s) as necessary. REFER to: Rear Parking Aid Sensor . - C4 RECHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Ignition ON.
- Using the diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and perform the BCM self-test.
Is the concern still present?
Yes If the symptom status PID in the snapshot data indicates sensor is covered, GO to C5 If the symptom status PID in the snapshot data indicates sensor is damaged, GO to C9 No The concern is not present at this time, but may have been caused by environmental conditions including snow, ice or dirt build-up on the sensors. - C5 INSPECT THE PARKING AID SENSOR(S) FOR PROPER INSTALLATION
- Inspect the parking aid sensor(s) for proper installation. The sensor should be secure and flush with the rear bumper surface. REFER to: Rear Parking Aid Sensor .
Is the suspect sensor installed correctly?
Yes GO to C10 No REPAIR or INSTALL new parking aid sensor(s) or rear bumper cover. REFER to: Rear Parking Aid Sensor . REFER to: Rear Bumper Cover . - C6 CHECK THE PARKING AID SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Disconnect BCM C2280G.
- Disconnect suspect parking aid sensor(s).
- Ignition ON.
- Measure:
DTC B1B44:00
Positive Lead Measurement / Action Negative Lead C4011-1 Ground C4011-2 Ground C4011-3 Ground DTC B1B46:00
Positive Lead Measurement / Action Negative Lead C4012-1 Ground C4012-2 Ground C4012-3 Ground DTC B1B48:00
Positive Lead Measurement / Action Negative Lead C4009-1 Ground C4009-2 Ground C4009-3 Ground DTC B1B50:00
Positive Lead Measurement / Action Negative Lead C4010-1 Ground C4010-2 Ground C4010-3 Ground
Is any voltage present?
Yes REPAIR the affected circuit. No GO to C7 - C7 CHECK THE PARKING AID SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
DTC B1B44:00
Positive Lead Measurement / Action Negative Lead C4011-1 Ground C4011-2 Ground C4011-3 Ground DTC B1B46:00
Positive Lead Measurement / Action Negative Lead C4012-1 Ground C4012-2 Ground C4012-3 Ground DTC B1B48:00
Positive Lead Measurement / Action Negative Lead C4009-1 Ground C4009-2 Ground C4009-3 Ground DTC B1B50:00
Positive Lead Measurement / Action Negative Lead C4010-1 Ground C4010-2 Ground C4010-3 Ground
Are the resistances greater than 10, 000 ohms?
Yes GO to C8 No REPAIR the affected circuit. - C8 CHECK THE PARKING AID SENSOR CIRCUITS FOR A SHORT TOGETHER
- Measure:
DTC B1B44:00
Positive Lead Measurement / Action Negative Lead C4011-1 C4011-2 C4011-2 C4011-3 C4011-3 C4011-1 DTC B1B46:00
Positive Lead Measurement / Action Negative Lead C4012-1 C2280G-2 C4012-2 C2280G-15 C4012-3 C2280G-12 DTC B1B48:00
Positive Lead Measurement / Action Negative Lead C4009-1 C2280G-2 C4009-2 C2280G-17 C4009-3 C2280G-12 DTC B1B50:00
Positive Lead Measurement / Action Negative Lead C4010-1 C2280G-2 C4010-2 C2280G-16 C4010-3 C2280G-12
Are the resistances greater than 10, 000 ohms?
Yes GO to C9 No REPAIR the affected circuit. - Measure:
- C9 CHECK THE PARKING AID SENSOR CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect suspect parking aid sensor if not previously disconnected.
- Disconnect BCM C2280G if not previously disconnected.
- Measure:
DTC B1B44:00
Positive Lead Measurement / Action Negative Lead C4011-1 C2280G-2 C4011-2 C2280G-14 C4011-3 C2280G-12 DTC B1B46:00
Positive Lead Measurement / Action Negative Lead C4012-1 C2280G-2 C4012-2 C2280G-15 C4012-3 C2280G-12 DTC B1B48:00
Positive Lead Measurement / Action Negative Lead C4009-1 C2280G-2 C4009-2 C2280G-17 C4009-3 C2280G-12 DTC B1B50:00
Positive Lead Measurement / Action Negative Lead C4010-1 C2280G-2 C4010-2 C2280G-16 C4010-3 C2280G-12
Are the resistances less than 3 ohms?
Yes GO to C10 No REPAIR the affected circuit. - C10 CHECK THE PARKING AID SENSOR(S)
- Install a known good sensor for the suspect parking aid sensor(s). REFER to: Rear Parking Aid Sensor .
- Connect all previously disconnected parking aid system connectors.
- Ignition ON.
- Using a diagnostic scan tool, clear the BCM Diagnostic Trouble Codes (DTCs).
- Perform the BCM self-test.
Is the concern still present for the suspect sensor(s)?
Yes GO to C11 No INSTALL a new parking aid sensor. REFER to: Rear Parking Aid Sensor . - C11 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 TSB exists for this concern, DISCONTINUE this test and FOLLOW the 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.