Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Doblò Factory Service Manual (2000-2010)22 · Fault diagnosis
22 · Diagnostics

Lights check not working

Make
Fiat
Model
Doblò Factory Service Manual
Year
2000–2010
Section
Lights › Lights check not working
Fault diagnosisLights check not working

LIGHTS CHECK NOT WORKING

With the ignition on, the Body Computer does not detect faults in the operation of the side lights, stop lights or rear fog lamps, despite the fact that they are not working, and the 'Light failure' warning light does not come on

Results of the tests
1CHECK ON BODY COMPUTERAll OKProblems metOperation
Check that the 'lights check' device inside the Body Computer is working properlyContinue to Step 2Light check device not working properlyReplace the Body Computer Op. 5505A32
2CHECK ON BODY COMPUTER ELECTRICAL CIRCUITAll OKProblems metOperation

Verify:

  • serial line between Body Computer and instrument panel
  • Body Computer supply; See E1010 SUPPLY
Continue to Step 3Connections not correctRestore connections See E1010 SUPPLY
Incorrect supplyRestore the correct supply See E1010 SUPPLY
3CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'

Parts & tools for this job For 2000 Fiat Doblò

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