Diesel Data: Automotive Repair

Turn Signal/Hazard Warning Control Circuit Input Test

Turn Signal/Hazard Warning Control Circuit Input Test

1. Remove the gauge control module.
2. Disconnect connector A (20P) from the gauge control module (B).






3. With the connector still disconnected, make these input tests at the gauge control module 20P connector terminals.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the gauge control module must be faulty; replace it.