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Fiat Ducato Factory Service Manual (2002-2006)23 · Fault diagnosis
23 · Diagnostics

(side) brake lights not working

Make
Fiat
Model
Ducato Factory Service Manual
Year
2002–2006
Section
Lights › (side) brake lights not working
Fault diagnosis(side) brake lights not working

(SIDE) BRAKE LIGHTS NOT WORKING

The brake lights do not work when the brake pedal is pressed with the key ON.

STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
1INDIVIDUAL LIGHT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check condition of the individual bulbs and associated bulb holder unitMove on to Step1. Bulbs damaged/inefficient

1. Change the bulbs

Op. 5540A74 BULB OF A SIDELIGHT OR FOG LAMP OR REVERSING LIGHT IN A TAIL-LIGHT, LH OR RH R R

2. Bulb holder unit fault

2.Repair or change the external tail-light

Op. 5540A44 L/H OR R/H TAIL LIGHT (ONE) - R+R

2BRAKE LIGHT ELECTRICAL CIRCUIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check the following, in order:

  • Brake light fuse;
  • Connections between battery, ignition switch, underfacia junction unit and brake light switch;
  • connections between brake light switch and bulbs;
  • bulb earth
Move on to Step1. Component defective1. Replace defective component (in the case of a fuse, find out what caused it to blow)
2. Connections interrupted

2. Repair the connections

See E2021 BRAKE LIGHTS

3BRAKE PEDAL SWITCH CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check that the brake pedal switch is correctly fastened and working properly

See E2021 BRAKE LIGHTS

Move on to Step1. Switch fastening/setting incorrect1. Adjust the switch
2. Brake pedal switch faulty2. Replace the switch
4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present

Parts & tools for this job For 2002 Fiat Ducato

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