Monday, June 28, 2021

2010 Cadillac Truck SRX FWD V6-3.0L Page 217

2010 Cadillac Truck SRX FWD V6-3.0L Page 217



Diagrams)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



Description and Operation



Object Detection Description and Operation (UVC) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist



Systems/Description and Operation/Object Detection (UVC))Object Detection Description and Operation (UD5) (See: Accessories and Optional



Equipment/Collision Avoidance and Parking Assist Systems/Description and Operation/Object Detection Description and Operation (UD5))



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit



Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring



Repairs/Wiring Repairs)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning)



Circuit/System Verification



Ignition ON, activate the parking assist, observe the scan tool Park Assist Sensor Reference Voltage parameter. The reading should be between



7.2-9.2 V.



Circuit/System Testing



1. Ignition OFF, disconnect the harness connector at each of the object sensors.



2. Ignition ON, activate the park assist, test for 7.5-9.0 V between the 8 V reference circuit terminal 1 at the B78G Rear Object Sensor - Left



Outer harness connector and ground.



瀚慖f less than the specified range, test the 8 V reference circuit for a short to ground. If the circuit tests normal, replace the K41 Parking



Assist Control Module.



瀚慖f greater than the specified range, test the 8 V reference circuit for a short to voltage. If the circuit tests normal, replace the K41 Parking



Assist Control Module.



3. Install each object alarm sensor harness connector one at a time, checking DTCs after each sensor is connected. Verify DTC B138A is not set



as current.



瀚慖f the DTC is set, replace the object alarm sensor that was connected immediately before the DTC set.



4. If all circuits test normal, replace the K41 Parking Assist Control Module.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests).



* Front Object Alarm Sensor Replacement (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist



Systems/Parking Assist Distance Sensor/Service and Repair/Front Object Alarm Sensor Replacement)



* Rear Object Sensor Replacement (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Parking



Assist Distance Sensor/Service and Repair/Rear Object Sensor Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning)



B144A



DTC B144A



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.

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