| | Results
of the tests |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect
the diagnostic equipment (Examiner or other instruments) 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 | Proceed according to the instructions of the diagnostic
equipment |
| Lack of dialogue with the control unit | Restore the connection between the engine management
control unit and the diagnostic connector See E5060 CRUISE CONTROL |
| 2 | CHECK CRUISE CONTROL SELECTOR | All OK | Problems met | Operation |
|---|
| Check
that the Cruise Control contacts for the ON/OFF control are working See E5060 CRUISE CONTROL | Continue to Step 3 | Lack of continuity | Replace the stalk unit lever
with built-in Cruise Control system control Op. 5580A10 |
| 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:Keeping the ignition key in the ON position, check that there
is a voltage signal from the brake pedal switch to the engine management
control unit See E5060 CRUISE CONTROL | Continue to Step 6 | No voltage from the Cruise Control
system control | Continue to Step 4 |
| No voltage from the brake pedal switch | Continue to Step 5 |
| 4 | CHECK ON CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
the electrical continuity of the wiring between the ignition switch,
junction unit, Cruise Control system control and engine management control
unit. See E5060 CRUISE CONTROL | Continue to Step 6 | Lack of continuity | Restore the connections See E5060 CRUISE CONTROL |
| 5 | CHECK ON CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
the condition of the brake pedal switch.Check the electrical continuity of the wiring between the ignition
switch, junction unit, brake pedal switch and engine management
control unit See E5060 CRUISE CONTROL | Continue to Step 6 | Brake switch faulty | Replace the brake pedal switch Op. 5550D10 |
| Lack of continuity | Restore the connections See E5060 CRUISE CONTROL |
| 6 | Continue as instructed by
the tester | All
OK | Problems
met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists: control
unit faulty | Replace the engine management control unit Op. 1056B82 |