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Home › Cadillac › 2006 › DTS 4.6 9 › Repair and Diagnosis › Accessories & Equipment › Collision/Avoidance › Object Detection System › Diagnostic Information and Procedures › DTC B0953 › Circuit/System Testing

Circuit/System Testing

IMPORTANT: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
  • The external speaker
  • The front and rear object alarm module
  • The external speaker wiring harness connector
  • The front and rear object alarm module wiring harness connector
  1. Ignition OFF, if DTC B0953 is current, disconnect the external speaker connector.
  2. Remove the front and rear object alarm module connector. Refer to front and rear object alarm module replacement in Repair Instructions for connector location.
  3. Test both speaker circuits between the front and rear object alarm module and the speaker. Verify that a short to voltage, short to ground, or open/low resistance does not exist.
    • If any of the above conditions are found make the appropriate repair.
  4. Reconnect all components. Ignition ON, use the scan tool to clear the DTCs then recheck for DTCs. Verify DTC B0953 does not set.
    • If DTC B0953 was current replace the external speaker. After replacement refer to Repair Verification.
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