Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Maintenance03 Diagnosis – checks04 Engine (1.6 and 2.0 Twin Spark)05 Clutch06 Gearbox (manual and Selespeed)07 Front axle08 Brakes, ABS and traction control09 Steering10 Suspension and wheels11 Heating, air conditioning and washers12 Electrical equipment13 Body14 Body panels and reinforcement15 Wiring diagrams16 Connectors and pin-outs17 Wiring harnesses18 Fault diagnosis19 Special tools
Alfa Romeo 147 Factory Service Manual (2000-2002)18 · Fault diagnosis
18 · Diagnostics

D75 Cruise control set control not working

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2002
Section
Engine › D75 Cruise control set control not working
Fault diagnosisD75 Cruise control set control not working

D75 Cruise control set control not working

The Cruise Control system does not reduce the speed when the ring nut is turned to " - "

StepTest procedureResultAction
1SELECTOR OPERATION CHECK

Check that the Cruise Control contacts work properly in the Set- position:

OK

Move onto step 2

Lack of continuity
  • Replace the steering column switch unit lever with the Cruise Control lever incoroporated Op. 5580A10

End of diagnosis

2SUPPLY CHECK

With the ignition ON and the Cruise Control ON and at '-', check that there is a voltage signal from the Cruise Control system to the engine management control unit: Wiring diagram E5060 CRUISE CONTROL

OK

Move onto step 3

No voltage found

End of diagnosis

3CORRECT OPERATION CHECK

Check that the fault is no longer present

OK

Incorrect selection of diagnostic procedure

The fault persists: control unit defective

Incorrect selection of diagnostic procedure

Parts & tools for this job For 2000 Alfa Romeo 147

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