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Fiat Panda Factory Service Manual (2003-2012)23 · Fault diagnosis
23 · Diagnostics

Catalyzer error

Make
Fiat
Model
Panda Factory Service Manual
Year
2003–2012
Section
Examiner › Catalyzer error
Fault diagnosisCatalyzer error

CATALYZER ERROR

1.1, 1.2 8v

The diagnostic equipment signals the following error: Catalyzer

Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

Connect the diagnostic equipment (Examiner or Examiner Plus) and record the errors and environmental parameters.

Check for the 'Catalyzer' error only

End of diagnosisThe 'Upstream Lambda signal' error is presentSee table Z56
The 'Mixture strength' error is presentSee table Z50
'Misfire' error present

Identify and eliminate the cause of the problem.

See table Z53

The 'Downstream Lambda signal' error is presentSee table Z58
The 'Catalyzer' error only is presentContinue to Step 1
Other errors are present

Identify and eliminate the cause of the problem.

Continue to Step 5

1EXHAUST SYSTEM LEAKS CHECKAll OKProblems metOperation

Check the exhaust system, visually and by listening, from the cylinder head outlet to the downstream Lambda sensor.

Check that there are no leaks

Continue to Step 2There are leaks

Restore the correct seal for the exhaust system, if necessary, replace the components involved.

Continue to Step 5

2ROAD TEST TO CHECK MIXTURE STRENGTHAll OKProblems metOperation
Road test the vehicle and check with the diagnostic equipment the status of the mixture strength check in 1st in closed loop. Check that the activation is correctContinue to Step 3The 1st closed loop activation is not correctSee table Z56
The 1st closed loop activation is not correctSee table Z58
3CHECKING INTAKE AND EXHAUST SYSTEM SEALAll OKProblems metOperation
Check the exhaust system visually and by listening, to check that there are no leaks from the cylinder head outlet to the upstream lambda sensorContinue to Step 4Seal not correct

Restore the correct seal for the system, if necessary, replace the components involved.

Continue to Step 5

4REPLACING THE CATALYZERAll OKProblems metOperation
Replace the catalyzer Op. 1080B62Continue to Step 5
5ERROR CANCELLING AND CHECKINGAll OKProblems metOperation

Use a tester to cancel the errors in the control unit.

Road test the vehicle and check that the error does not occur again

Continue to Step 6The fault persists, it is the first time that this step has been reached and the catalyzer has not yet been replacedContinue to Step 0
The fault persists, but it is the second time that this step has been reached or the catalyzer has already been replacedContact Technical Support for further information on the problem
6Continue as instructed by the testerAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosis

Parts & tools for this job Staging For 2003 Fiat Panda

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