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

I39 TURN SIGNALS DO NOT WORK WHEN HAZARD KEY IS PRESSED

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 button in the switch unit is operated the hazard warning lights 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
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Check whether the left and right direction indicators work properly with the ignition switched on.Move on to StepThe direction indictors do not workProceed as instructed See table I35 DIRECTION INDICATORS (TWO) RH AND LH NOT WORKING
1TURN 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
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
2SWITCH CONTROL UNIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the following, in order:
  • Correct power supplies/earths to switch control unit
  • Check that when the switch in the switch unit is operated there is a corresponding battery voltage output from the switch unit to switch on the bulbs
Move on to Step 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
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present