| | Results of the tests |
| 1 | CHECK SET+ CONTROL | All OK | Problems met | Operation |
|---|
|
Check
the correct operation of the Cruise Control contacts in the Set+
position:
See Test 5580AB Cruise Control "SET+" control check |
Continue to Step
2
| Lack of continuity |
Replace stalk unit lever with
built-in Cruise Control system control
Op. 5580A10 |
| 2 | CHECK CONNECTIONS TO ENGINE MANAGEMENT
CONTROL UNIT | All
OK | Problems
met | Operation |
|---|
|
With
ignition on and Cruise Control on Set+, check for the presence of
a voltage signal from the Cruise Control to the engine management
control unit (
See E5060 CRUISE CONTROL
)
|
Continue to Step
3
| No voltage found | Restore connections |
| 3 | CHECK ENGINE MANAGEMENT CONTROL
UNIT | All
OK | Problems
met | Operation |
|---|
| Check
the operation of the engine management control unit |
Continue to Step
4
| Engine management control
unit faulty |
Replace engine management control unit
Op. 1056B82 |
| 4 | HECK ON 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' |