| | Results of the tests |
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect the diagnostic equipment (Examiner Plus or Smart) to the diagnostic socket.Check that there are no faults in the engine management control unit | Continue to Step 2 | An error is detected in the control unit | Continue, following the instructions for the diagnostic equipment |
| Lack of dialogue with the control unit | Restore the connection between the engine management control unit and the diagnostic connector See See E5060 CRUISE CONTROL |
| 2 | CHECK CRUISE CONTROL SELECTOR | All OK | Problems met | Operation |
|---|
| Check that the Cruise Control contacts are working | Continue to Step 3 | Lack of continuity | Replace the stalk unit lever with built-in Cruise Control system control Op. Op. 5580A10 CRUISE CONTROL LEVER ASSEMBLY - R+R |
| 3 | CHECK ON SUPPLY | All OK | Problems met | Operation |
|---|
| With the ignition and Cruise Control on, check that there is a voltage signal from the Cruise Control system control to the engine management control unit: See See E5060 CRUISE CONTROL | Continue to Step 4 | No voltage found | Restore the connections See See E5060 CRUISE CONTROL |
| 4 | CHECK ON CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check the electrical continuity of the wiring between junction unit, ignition switch, engine management unit and cruise control system control: See See E5060 CRUISE CONTROL | Continue to Step 5 | Lack of continuity | Restore the connections See See E5060 CRUISE CONTROL |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| 1.9 JTD 16V | Check that the fault is no longer present | End of diagnosis | Fault persists: control unit defective | Replace the engine management control unit Op. Op. 1060G80 DS ELECTRIC INJECTION CONTROL UNIT - R R |
| 2.0 JTS3.2 V6 | Check that the fault is no longer present | End of diagnosis | Fault persists: control unit defective | Replace the engine management control unit Op. 1056B82 |