| TEST RESULTS |
| 1 | RELAY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Remove the horn relay feed and check that the horns stop making a sound. | Move on to Step 2 | 1. The horn continues to sound even without the relay2. The horn stops working | 1. Electrical contact in the engine compartment junction unit.Replace engine compartment junction unit See E3010 HORNS 2. Replace the relay |
| 2 | CHECK THE WIRING | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the insulation of the connection between the clock spring on the steering column switch unit and earth | End of diagnosis | 1. Wiring insulation not correct between clock spring and earth.2. Clock spring short circuited | 1. Restore the correct insulation.2. Replace the clock spring. |
| 3 | HORN ELECTRICAL CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the button on the steering wheel is working properly | Move on to Step 4 | Button on steering wheel mechanicall stuck | Replace the button on the steering wheel. |