2010 Cadillac CTS Sedan AWD V6-3.6L Page 75

2010 Cadillac CTS Sedan AWD V6-3.6L Page 75

* The condition responsible for setting the DTC no longer exists.

* A history DTC will clear once 40 malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical

Diagrams)

Connector End View Reference

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

Description and Operation

Object Detection Description and Operation (UD7 with Display) (See: Accessories and Optional Equipment/Collision Avoidance and Parking

Assist Systems/Description and Operation/Object Detection Description and Operation (UD7 with Display))Object Detection Description and

Operation (UD7 Audio Only) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and

Operation/Object Detection Description and Operation (UD7 Audio Only))Object Detection Description and Operation (B3T) (See: Accessories

and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and Operation/Object Detection Description and Operation

(B3T))Object Detection Description and Operation (UVC) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist

Systems/Description and Operation/Object Detection Description and Operation (UVC))

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)

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

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

Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the rear upper beam sensor and the harness connector at the pedestrian impact detection

module.

2. Test for infinite resistance between the sensor signal circuit terminal 1 and ground.

瀚慖f less than infinite resistance, test the circuit for a short to ground.

3. Ignition ON, test for less than 1 volt between the sensor signal circuit terminal 1 and ground.

瀚慖f greater than the specified range, test the circuit for a short to voltage.

4. Test for less than 1 volt between the sensor low reference circuit terminal 2 and ground.

瀚慖f greater than the specified range, test the circuit for a short to voltage.

5. Test for less than 1 ohm between the sensor low reference circuit terminal 2 and the pedestrian impact detection module terminal 31.

瀚慖f greater than the specified value, test the circuit for an open/high resistance. If the circuit tests normal, replace the rear upper beam

sensor.

6. Test for less than 1 ohm between the sensor signal circuit terminal 1 and the pedestrian impact detection module terminal 30.

瀚慖f greater than the specified value, test the circuit for an open/high resistance. If the circuit tests normal, replace the rear upper beam

sensor.

7. If all circuits test normal, replace the rear upper beam sensor.

8. With a scan tool, clear DTCs.

9. Verify DTC B009D is not set.

瀚慖f DTC is set, replace the pedestrian impact detection module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Pedestrian Impact Detection Sensor Replacement - Rear Upper Beam (See: Accessories and Optional Equipment/Collision Avoidance and