Question about Isuzu Cars & Trucks
No trigger supply to the start control soloniod on the injector pump rack but has the holding charge (5v) check fuses most dash globes were missing fitted glow warning light to find it flashing indicating a fault checked reistance on soloniod, checks out ok earth ok check contnuity of trigger supply (white) and module ok as is holding charge wire(red) no odometer
Not sure here but its a 2002 so iam assuming its a common rail diesel engine and without my head under the bonnet its difficult to say what the problem is ,i think though that you will need the dealer software to know what is happening as i suspect a fault with the ECU but as stated need head under the bonnet to be sure
Posted on Feb 15, 2012
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Posted on Jan 02, 2017
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The tail and marker lights and Instrument lights are on the same circuit so both will go out if the fuse for this circuit blows. If fuse continues to fail, check the tail light or marker globes, including the globes for the number plate, for a globe that may have an internal short causing the fault and replace as necessary. As you have already checked the wiring near the light fittings for any chafed wires that could be shorting to the body causing the fault, then a closer inspection of the wires inside all the light assemblies for any shorts may be needed.
It could also be that the instrument dimmer control has failed and is causing the fault. The electronic bits inside the dimmer control for these lights sometimes go faulty. Try disconnecting the connecting plug on the rear of the dimmer control and checking if fuse still blows. If fuse continues to fail, then the fault in the tail and marker lights circuit.
Remove all the tail, number plate and running light globes from the light assemblies and leave the instrument dimmer control disconnected and check if fuse still blows.
Disconnect the plug near each of the light assemblies to see if any of the individual assemblies is causing the fault. With all light assemblies disconnected and fuse continues to fail, then the fault must be in the main wiring loom some where.
If you have a Multimeter, it could be used to determine which light assembly has a fault between the lamp supply and earth connection.
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