Test results 1 COMPONENT CONCERNED REVERSING SWITCH WIRING CHECK OK (NO FAULTS DETECTED) FAULT DETECTED OPERATION Reversing switch wiring Check the wiring between engine management control unit and reverse switch Go to Step 2 Wiring faults Restore the correct connections 2 COMPONENT CONCERNED REVERSING SWITCH OPERATION CHECK OK (NO FAULTS DETECTED) FAULT DETECTED OPERATION Reverse switch Check that the reversing switch is working correctly End of diagnosis Incorrect operation Replace the reversing switchSee descriptions 5550D22 REVERSING LIGHT SWITCH - R+R