Pinpoint Test P: B1B44:98, B1B46:98, B1B48:98, B1B50:98
- DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition IPMA B1B44:98 Right Rear Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHR outer parking aid sensor detects an over temperature event. IPMA B1B46:98 Right Rear Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHR inner parking aid sensor detects an over temperature event. IPMA B1B48:98 Left Rear Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHR outer parking aid sensor detects an over temperature event. IPMA B1B50:98 Left Rear Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHR inner parking aid sensor detects an over temperature event. Possible Sources
- Aftermarket parts
- Damage to the rear bumper or sensor
- Rear parking aid sensor
- IPMA
- P1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the IPMA self-test.
- Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.
Are parking aid Diagnostic Trouble Codes (DTCs) recorded?
Yes For Diagnostic Trouble Codes (DTCs) B1B44:98, B1B46:98, B1B48:98 or B1B50:98; GO to P2
For all other Diagnostic Trouble Codes (DTCs), REFER to Diagnostic Trouble Code (DTC) Chart .No The system is operating correctly at this time. - P2 CHECK THE PARKING AID SENSOR FOR PROPER VENTILATIONNOTE: The operating temperature range for the parking aid sensors is -40 deg.C (-40 deg.F) to 85 deg.C (176 deg.F).
- Clean the rear bumper and sensors with high-pressure water.
- Make sure the suspect parking aid sensor(s) has its heat shield and is flush-mounted in the bezel.
- Check for damage, debris or any aftermarket air dams that may restrict sensor ventilation.
- Check for aftermarket exhaust or other aftermarket parts.
Is there any damage or aftermarket parts restricting the ventilation to the sensor(s)?
Yes REPAIR or REMOVE the parts as needed. No GO to P3 - P3 CHECK THE PARKING AID SENSOR FOR AN OBSTRUCTION
- Clean the rear bumper and sensors with high-pressure water.
- Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.
- Check for damage, debris or any aftermarket air dams that may restrict sensor operation.
- Check for aftermarket exhaust or other aftermarket parts.
Is there any damage or aftermarket parts obstructing the sensor(s)?
Yes REPAIR or REMOVE the parts as needed. No GO to P4 - P4 CHECK THE PARKING AID SENSORS
- Ignition OFF.
- Install a known good sensor for the suspect parking aid sensor. REFER to: Rear Parking Aid Sensor .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the IPMA self-test.
Is the concern still present?
Yes GO to P5 No The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly. - P5 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION
- Ignition OFF.
- Disconnect and inspect all IPMA 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 IPMA 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMA. REFER to: Image Processing Module A (IPMA) . 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.