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Fiat Croma Factory Service Manual (2005-2010)22 · Fault diagnosis
22 · Diagnostics

General failure warning light on constantly

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Instrument panel › General failure warning light on constantly
Fault diagnosisGeneral failure warning light on constantly

GENERAL FAILURE WARNING LIGHT ON CONSTANTLY

Even if none of the functions indicated to be faulty by the general fault warning light is faulty, the warning light on the control panel stays lit

N.B.: The functions that cause the general fault warning light to come on are as follows:

  • Inertia switch operation (FIS)
  • Speed limit exceeded
  • Diesel filter sensor fault (only JTD)
  • Engine oil pressure sensor failure
  • Rain sensor fault (if fitted)
  • Rain sensor fault (if fitted)
  • Dusk sensor fault (if fitted)
  • Window antipinch system fault (only for HIGH version)
  • Speedometer signal fault
  • Tyre inflation pressure monitoring failure
1PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION

Carry out the following preliminary checks in order:

  • Try to start the engine
  • set the limit speed to 30 km/h and carry out a road test at a higher speed to cause the warning light to come on and the buzzer to sound. Check the buzzer is not disabled
  • With the key ON, check the engine oil minimum pressure, water in diesel filter (if a JTD engine) and MIL warning lights perform the intial test and turn off upon start-up.
  • If the vehicle is fitted with a rain sensor, with the key ON, position the wheel on the right steering wheel stalk to intermittent and check that the windscreen wiper system runs the operation check.
  • If the vehicle is fitted with a dusk sensor, set the wheel on the left steering wheel stalk to AUTO, cover the sensor and check that the low beams come on.
  • If the vehicle is equipped with a parking sensor, engage revese and check that the buzzer sounds
  • If the vehicle is fitted with antipinch window seals, lower the front windows, place an obstacle in the way of the rising glass and operate closure. Check that the window stops and goes back down.
Move on to Step 11. The engine will not start under any condition

1. Continue as instructed in the

See table B010 ENGINE DOES NOT START (UNDER ANY CIRCUMSTANCES)

2. The buzzer does not sound when the limit speed is exceeded

2. Continue as instructed in the

See table K003 SPEEDOMETER NOT WORKING

3. The minimum oil pressure warning light does not perform the initial test

3. Continue as instructed in the

See table K030 MINIMUM ENGINE OIL PRESSURE WARNING LIGHT NOT WORKING

4. The minimum oil pressure warning light stays on

4. Continue as instructed in the

See table K047 MINIMUM ENGINE OIL PRESSURE WARNING LIGHT ON CONSTANTLY

5. The water in the diesel filter warning light does not run the initial test

5. Continue as instructed in the

See table K122 WATER IN DIESEL FILTER WARNING LIGHT OFF (INITIAL TEST NOT CARRIED OUT)

6. The water in the diesel filter warning light stays on

6. Continue as instructed in the

See table K123 WATER IN DIESEL FILTER WARNING LIGHT ON CONSTANTLY

7. The MIL warning light does not carry out the intial test

7. Continue as instructed in the

See table K100 MIL WARNING LIGHT NOT WORKING (REMAINS OFF BEFORE STARTING)

8. The MIL waring light stays on

8. Continue as instructed in the

See table K101 MIL WARNING LIGHT STAYS ON (ENGINE STARTS)

9. The windscreen wiper is not activated

9. Continue as instructed in the

See table J030 WHEN IT RAINS, THE WINDSCREEN IS NOT CLEANED AUTOMATICALLY

10. When reverse is engaged, the buzzer does not sound

10. Continue as instructed in the

See table N046 PARKING DEVICE BUZZER NOT WORKING

11. The low beams do not come on automatically

11. Continue as instructed in the

See table I004 SIDE LIGHTS / NUMBER PLATE LIGHT AND DIPPED BEAMS DO NOT WORK IN AUTO MODE

12. The windows do not perceive the obstacle

12. Continue as instructed in the

See table M005 MANUAL FRONT WINDOWS NOT WORKING

1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the diagnostic tester and check on the INSTRUMENT PANEL NODE the operation of the warning lights by means of active diagnosisEnd of diagnosisThe warning lights do not flash

Replace instrument panel

Op. 5560B10 CONTROL PANEL - R+R

Parts & tools for this job For 2005 Fiat Croma

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