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Home >> Chevrolet >> 2014 >> Trax LS, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B1405 (Rear Park Assist - UD7) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2013 Chevrolet Trax and 2013 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X2 harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON.
  2. Test for less than 1 V between the 8 V reference circuit terminal 4 and ground.
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  3. Ignition OFF.
  4. Test for infinite resistance between the 8 V reference circuit terminal 4 and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  5. Replace the K41 Front and Rear Parking Assist Control Module.
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