145 - MiTo   1.4 16v TJet   DIPPED HEADLAMPS NOT WORKING   I005   


 

 

 

Test results

 

0

 

PRELIMINARY CHECKS

 

All OK

 

Problems encountered

 

Operation

 

 

Activate the appropriate command and check whether the warning light in the dashboard comes on.

 

Move on to Step 2

 

The warning light is not activated.

 

Move on to Step 1

 

1

 

CHECK USING DIAGNOSTIC EQUIPMENT

 

All OK

 

Problems encountered

 

Operation

 

 

Connect the Examiner diagnostic equipment and check that there are no errors in the Body Computer ambient

 

Move on to Step 2

 

Errors present

 

Continue as instructed by the diagnostic equipment

 

2

 

ACTIVE DIAGNOSIS CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

With the Examiner in the Body Computer mode check that the dipped headlamps are correctly activated in Active Diagnosis.

 

End of diagnosis

 

1. Impossible to activate one of the dipped headlamps because the bulb has blown

2. Impossible to activate one of the dipped headlamps because the wiring is interrupted

3. Impossible to activate both lights

 

1. Replace the defective bulb.

2. Restore correct wiring.

3. Move on to Step 3

 

3

 

DIPPED HEADLAMPS ELECTRICAL CIRCUIT CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check that the steering wheel interface lighting lever is working properly

Check the continuity of the wiring between the steering wheel interface and the Body Computer and between the Body Computer and the lights

Check the operation of the dipped headlamps relay in the dashboard junction unit

 See E2011 DIPPED HEADLAMPS

 

Move on to Step 4

 

1. Steering wheel interface defective

2. Wiring interrupted

3. Relay defective.

 

1. Replace the steering wheel interface

 Op. 5550A10 STALK UNIT ASSEMBLY - R+R

2. Restore correct wiring

3. Replace the relay.

 

4

 

BODY COMPUTER CORRECT OPERATION CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check that the body computer is working properly

 

End of diagnosis

 

Body Computer defective

 

Replace the body computer

 Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.

APPLIES TO VERSIONS WITH: Gas discharge headlamps

 

 

TEST RESULTS

 

1

 

DIPPED HEADLAMPS POWER SUPPLY CHECK

 

ALL OK

 

PROBLEMS ENCOUNTERED

 

ACTION

 

 

Turn the steering wheel interface lever to the dipped headlamps position and check that the voltage at the headlamps is correct

 See Test 5540BA DIPPED BEAM CIRCUIT CHECK

 

Move on to Step 2

 

 

 

2

 

CHECK ON OPERATION OF BULBS

 

ALL OK

 

PROBLEMS ENCOUNTERED

 

ACTION

 

 

Check that the bulbs are working by trying to replace them

 Op. 5540B45 GAS DISCHARGE LOW/MAIN BEAM HEADLAMP BULB - R.R.

 

End of diagnosis

 

1. Right headlamp bulb defective (after it has been replaced it works correctly)

2. Left headlamp bulb defective (after it has been replaced it works correctly)

 

1. Replace the original left headlamp bulb (which is still off).

2. Replace the original right headlamp bulb (which is still off).

N.B. The dipped headlamps are managed by the Body Computer Node

The lights can be switched on/off using the following controls:

1. Specific command (from the Exterior Lights Control on the steering wheel interface)

2. Follow me home command

APPLIES TO VERSIONS WITH: Gas discharge headlamps

it should be remembered that xenon bulbs do not have a filament and cannot therefore be tested using an ohmmeter

Neither of the dipped headlamps is working under any circumstances