| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| Check that the vehicle/seat connections are correctly fitted | Move on to Step 1 | Connections broken/loose | Renew the correct connections |
| 1 | CHECK ON POWER SUPPLY TO THE SEAT | All OK | Problems encountered | Operation |
|---|
| Check the power supply at the seat, checking the condition of the following in order:- fuses;- wiring;- switch | Move on to Step 2 | 1. Fuses blown2. Wiring broken3. Switch not working | 1. Replace the fuses (searching for the cause of the fault)2. Restore the correct wiring3. Replace the switch |
| 2 | MOTOR POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
|---|
| Check for a power supply at the motor located at the rear of the backrest inside the front seat | End of diagnosis | Motor power supply not correct | Replace the lumbar adjustment assembly unit Op. 7045A39 DEVICE FOR DRIVER'S SEAT BACKREST LUMBAR ADJUSTMENT - R.R. |
