Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 155 Factory Service Manual (1992-1998)23 · Electrical 11A – Dim-dip device
23 · Electrical

Troubleshooting

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Troubleshooting › Troubleshooting
Electrical 11A – Dim-dip deviceTroubleshooting

TROUBLESHOOTING

(See also "Main and dipped-beam headlights")

DIPPED-BEAM HEADLIGHTS NOT WORKING, NEITHER AT HIGH NOR LOW INTENSITY

TEST A

TEST PROCEDURERESULTCORRECTIVE ACTION
A1CHECK RELAYOK
NOT OK		Carry out step A2
Replace relay I49
- Check for correct operation of relay I49, located in fusebox G1
A2CHECK VOLTAGEOK
NOT OK		Carry out step A3
Restore wiring between pin F9 of G1 and pin A10 of lever group B68 (ORN)
- Turn the ignition key and check for 12V at pin A10 of lever group B68
A3CHECK LEVER GROUPOK
NOT OK		Carry out step A4
Replace lever group B68, left-hand part
- Check for correct operation of lever group: with Dipped-beam headlights on, check for continuity between pin A8 and pin A10 of lever group B68
A4CHECK VOLTAGEOK
NOT OK		Carry out step A5
Restore wiring between pin F7 of G1 and pin A8 of lever group B68 (GRY)
- With ignition key turned and Dipped-beam headlights on, check for 12V at pin F7 of G1
A5CHECK FUSEOK
NOT OK		Carry out step A6
Replace the fuse/s (10A)
- Check for damage of fuses F7 and F8 of G1
A6CHECK CONTINUITYOK
NOT OK		Carry out the other tests in section "Main and dipped beam headlights"
Restore wiring between:
- pin I6 of G1 and pin BC of light assembly E24, across pin A of resistance O28 (GRY-BLK)
- pin I7 of G1 and pin BC of light assembly E23, across pin C of resistance O28 and pin 3(2*) of connector G306 (GRY)
- Check for continuity between:
pin I6 of G1 and pin BC of light assembly E24
pin I7 of G1 and pin BC of light assembly E23

(*) from chassis N° ___

Parts & tools for this job For 1992 Alfa Romeo 155

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