Workshop Manuals Factory service & repair Lancia
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Lancia Thesis Factory Service Manual (2002-2009)22 · Fault diagnosis
22 · Diagnostics

Ignition switch not working

Make
Lancia
Model
Thesis Factory Service Manual
Year
2002–2009
Section
Starting › Ignition switch not working
Fault diagnosisIgnition switch not working

IGNITION SWITCH NOT WORKING

When the key is turned to the ON position nothing happens, the instruments do not light up; In the starting position, the starter motor does not turn.

STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
1BATTERY EFFICIENCY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the efficiency of the battery using the appropriate diagnostic equipmentMove on to StepBattery not working properlyReplace the battery
2FASTENINGS CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check the following, in order:

  • Correct fastening and earth connection of the negative battery terminal
  • Correct fastening of positive battery pole and all leads connected to it
  • No oxidation of the lead fastenings
  • Correct fastening and connection between positive pole and junction with maxifuse at the battery
Move on to Step1. Lead fastenings at the battery slack1. Tighten leads
2. Earth lead frayed

2. Replace lead

See in Op. 5530B22 battery earth lead - r+r

3. Connections with slack fastenings3. Restore fastenings
4. Maxifuse burnt out

4. Check the causes of the blown fuse and replace it

(Wiring Diagram ) E1010 POWER SUPPLY

3SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check switch power supplyMove on to StepThe power supply does not reach the switch

Check the continuity of the wiring between the Maxifuse in the battery junction unit and the switch

(Wiring Diagram ) E1010 POWER SUPPLY

4SWITCH CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the condition of the switch and that it is working properlyMove on to StepSwitch contacts not working properly

Replace the switch

See in Op. 5520A12 IGNITION SWITCH ASSEMBLY - R.R. for versions with AIR BAG

5CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present

Parts & tools for this job Staging For 2002 Lancia Thesis

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