194002836 - K144 ONE WARNING LIGHT ACTIVATED BY STEERING COLUMN SWITCH UNIT ON CONSTANTLY

When the lights are deactivated using the stalk, the relevant warning light does not go off on the instrument panel N.B: The warning lights activated when the stalk is operated are:

  • Side lights/number plate lights
  • Main beam headlamps
  • Direction indicators
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
With the key ON, turn all the lights on and off from the stalk, i.e.:

  • Using the wheel, side lights/number plate lights

  • With the stalk, high beams (both fixed and flashing positions)

  • With the stalk, turn signals (right and left) and check they turn on/off
Move on to Step 11. The side lights do not work1. Continue as described by the diagnostic equipment
2. The high beams do not work2. Continue as described by the diagnostic equipment
3. The turn signals do not operate on both sides3. Continue as described by the diagnostic equipment
4. The turn signals do not operate on one side only4. Continue as described by the diagnostic equipment
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner diagnostic equipment check, in Instrument Panel mode, that there are no errors and that the parameters are present.Move on to Step 2Presence of errorsContinue following the instructions on the diagnostic instrument
2ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the electricity supply to the Instrument Panel Node is correct.Move on to Step 3Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
3CHECK ELECTRICAL CONNECTIONSALL OKPROBLEMS ENCOUNTEREDACTION
Check the electrical connections between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected.Move on to Step 4Electrical connections not operationalRenew the damaged electrical connections
4ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the Examiner in Instrument Panel Node mode, check that the warning lights in question are correctly activated in Active Diagnosis.Move on to Step 5The warning lights do not flashReplace the Instrument Panel    Op. 5560B10 CONTROL PANEL - R+R
5CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner check, in the Body Computer Node mode, that there are no errors and that the parameters are present.Move on to Step 61. Impossible to connect to the Body Computer control unit.1. Move on to Step 6
2. Presence of errors.2. Continue following the instructions on the diagnostic instrument
3. The parameters do not change3. Move on to Step 8
6ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the electricity supply to the Body Computer Node is correct.Move on to Step 7Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
7CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Use an Examiner to check the possibility of connection to the Body Computer NodeMove on to Step 8Impossible to connect to the Body Computer control unit.Replace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.
8CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis