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Alfa Romeo 159 Factory Service Manual (2005-2011)23 · Fault diagnosis
23 · Diagnostics

General failure warning light on constantly

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
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 signalled by the general failure warning light is faulty, the warning light in the instrument panel remains on

N.B: The following functions cause the activation of the general failure warning light:

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

Carry out the following preliminary checks, in order:

  • Try and start the engine
  • set the speed limit at 30 km/h and road test the vehicle at a higher speed to make the warning light come on and the buzzer sound. Check that the buzzer has not been disabled
  • With the ignition ON, check that the engine oil pressure warning light, water in diesel filter warning light (in the case of a JTD engine) and the MIL warning light carry out the initial test and then switch off on starting.
  • If the vehicle is equipped with a rain sensor, with the ignition ON, place the ring nut on the right steering column switch unit lever in the intermediate position and check that the windscreen wiper system carries out the operating check.
  • If the vehicle is equipped with a dusk sensor, place the ring nut for the left steering column switch unit lever in the AUTO position, cover the sensor and check that the dipped headlamps come on.
  • If the vehicle is equipped with parking sensors, engage reverse gear and check that the buzzer sounds.
  • If the vehicle is equipped with anti-crush window sensors, lower the front windows, place an obstacle in the path of the window and close the window. Check that the window stops and goes back down
Move on to Step 11. The engine does not start in any circumstances

1. Continue as instructed in the

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

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

2. Continue as instructed in the

See table K003 SPEEDOMETER NOT WORKING

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

3. Continue as instructed in the

See table K030 MINIMUM ENGINE OIL PRESSURE WARNING LIGHT NOT WORKING

4. The minimum engine oil pressure warning light remains 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 carry out 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 remains 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 warning 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. The buzzer does not sound with reverse gear engaged

10. Continue as instructed in the

See table N046 PARKING DEVICE BUZZER NOT WORKING

11. The dipped headlamps are not automatically activated

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 detect 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 equipment and check the operation of the general failure warning light in active diagnosis at the INSTRUMENT PANEL NODEEnd of diagnosisThe warning light does not flash

Replace instrument panel

Op. 5560B10 CONTROL PANEL - R+R

Parts & tools for this job For 2005 Alfa Romeo 159

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