| | Results of the tests |
| 1 | INSTRUMENT SUPPLY CIRCUIT CHECK | All OK | Problems met | Operation |
|---|
| Check, in order: - instrument supply fuses
- instrument earth
- connections between junction unit and instrument See E4010 INSTRUMENT PANEL
| Continue to Step 2 | Component defective | Replace the component involved
(if a fuse is involved, search for the cause of the problem) |
| Connections broken | Restore the connections |
| 2 | 2 INSTRUMENT LIGHT CHECK | All OK | Problems met | Operation |
|---|
| Check
that the instrument is correctly supplied: the instrument should
be lit up with the ignition switched ON; the light should dim with
the side lights signal | Continue to Step 3 | Instrument not working | Change the instrument Op. 5560B10 |
| 3 | INSTRUMENT DISPLAY CHECK | All OK | Problems met | Operation |
|---|
| Check
the operation of the instrument display see DESCRIPTION AND OPERATION: 5560 INSTRUMENT PANEL | The segments of the milometer
and clock display can be tested as follows: turn the ignition on
while holding down the reset button. |
| Continue to Step 4 | Display not working | Change the instrument Op. 5560B10 |
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |