199000861 - 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
The warning lights activated when the stalk is operated are:- Side lights/number plate lights- Main beam headlamps- Direction indicators
Results of the tests
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
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, direction indicators (right and left) and check they turn on/offMove on to Step 11. The side lights do not work2. The high beams do not work3. The turn signals do not operate on both sides4. The turn signals do not operate on one side only1. Continue as indicated    See table I001 SIDE LIGHTS/NO. PLATE LIGHTS NOT WORKING 2. Continue as indicated    See table I006 MAIN BEAM HEADLAMPS NOT WORKING 3. Continue as indicated    See table I010 DIRECTION INDICATORS / HAZARD WARNING LIGHTS NOT WORKING 4. Continue as indicated    See table I012 LEFT OR RIGHT DIRECTION INDICATORS NOT WORKING
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using an Examiner 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 encounteredOperation
Check the electricity supply to the Instrument Panel Node is correctMove 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 encounteredOperation
Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connectedMove on to Step 4Electrical connections not operationalRenew the damaged electrical connections
4ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
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 encounteredOperation
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.2. Presence of errors3. The parameters do not change1. Move on to Step 62. Continue by following the instructions on the diagnostic instrument3. Move on to Step 7
6ELECTRICAL POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the electricity supply to the Body Computer Node is correctMove 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 encounteredOperation
Use an Examiner to check the possibility of connection to the Body Computer NodeEnd of diagnosisImpossible to connect to the Body Computer control unitReplace Body Computer    Op. 5505A32 BODY COMPUTER - R.R