Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Croma Factory Service Manual (2005-2010)16 · Electrical equipment
16 · Electrical

Check spark plug heating fuse

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Instrument/gauge electrical circuits › Check spark plug heating fuse
Electrical equipmentCheck spark plug heating fuse

CHECK SPARK PLUG HEATING FUSE

Check 5505AG

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

STEPCHECK TO BE PERFORMEDRESOLUTION IF THE CHECK IS NOT OK
1

Turn the ignition key OFF.

Reconnect all the disconnected components.

Turn off all the electrical users.

Insert a new fuse F11 in the engine compartment junction unit and check it does not blow.

Move on to Step 3

Move on to Step 2
2

If necessary, repair errors in the wiring between the engine compartment junction unit and spark plug control unit

See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT

The test can be considered over

Replace the glow plug preheating control unit

Op. 5520C20 HEATER PLUGS CONTROL UNIT - R.R

3

Turn the ignition key ON.

Check that fuse F11 cuts in

A temporary current overload has occurred in the circuit behind fuse F11. check the electrical connections for the junction unit
4

Turn the ignition key OFF.

Disconnect the harness from a spark plug.

Fit a new fuse F11 and check it does not blow.

Reconnect the spark plugs and disconnect another, repeating the test until all the spark plugs have been checked.

Replace the spark plug that does not trigger the fuse

Op. 5520C10 HEATER PLUGS - R+R

5

If necessary, repair the faults in the wiring between the spark plug control unit and the glow plugs

See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT

Replace the glow plug preheating control unit

Op. 5520C20 HEATER PLUGS CONTROL UNIT - R.R

Parts & tools for this job For 2005 Fiat Croma

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