FIAT / DUCATO 244eLearn workshop manual · English · Offline edition
Fault diagnosis

I36 TURN SIGNAL FRONT (ONE) RH OR LH NOT WORKING

Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
When the stalk switch is operated with the key ON, the turn signals do not work
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
1INDIVIDUAL BULB CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the condition of the bulbs and associated bulb holderMove on to Step1. Bulbs damaged1. Change bulbs
2. Light cluster fault2. Replace or change the light cluster
2TURN SIGNAL ELECTRICAL CIRCUIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the following, in order:
  • Turn signal fuses;
  • Connections between battery and underfacia junction unit
  • Connections between battery, ignition switch and underfacia junction unit
  • Connections between underfacia junction unit and switch control unit
  • Connections between stalk unit and switch control unit
  • Stalk unit earth
  • Connections between switch control unit 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 interrupted2. Repair the connections See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
3STEERING COLUMN SWITCH UNIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that an earth signal is present to the switch control unit when the stalk unit turn stalk switch is operated See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTSMove on to StepStalk unit not working properlyReplace the steering column switch unit Op. 5550A12 COMPLETE STALK UNIT - R+R FOR VERSIONS WITH AIR BAG
4SWITCH CONTROL UNIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the following, in order:
  • Correct power supplies/earths to switch control unit
  • Check that when an earth signal is activated from the stalk unit to the switch control unit, a battery voltage leaves the switch control unit to turn on the bulbs
Move on to Step1. Power supplies/earths incorrect1. Restore correct power supplies/earths See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
2. Switch control unit fault2. Replace switch control unit Op. 5505A24 W/L AND SERVICE SWITCH MOUNT - R+R
5CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present