Ignition doesn't shut off dash lights, steering column adjustment, keys in ignition bell etc.
Keeps killing battery, over & over.
Have to disconnect battery.
High draw at reconnect, -flash spark.
Mechanic wants big$ to guess@ troubleshooting.
Suggestions?? Faulty ignition switch/part or assy?
Stuck relay somewhere?. Low battery voltage?

Any help with suggestions is much appreciated!!

93lexusman

 

This can be a time consuming process for a novice. A reputable shop should be able to sort this out in a few hours or @ least be on the trail of a conclusion. Of course the part & installation would be additional. There should NO guessing involved.

The diagnostic is pretty basic, you remove fuses 1 @ a time until the draw goes away to isolate the circuit. Then you disconnect each individual component on that circuit 1 @ a time until the draw goes away. The part you are holding when the draw goes away is the 1 that needs to be replaced. You can see how time consuming this can get depending on the location of the component to be disconnected.

If you are going to attempt this yourself you will need a Ohm meter, wiring diagrams, component location charts & basic hand tools. Connect the meter set to mAmps between the negative battery cable end & the negative battery post. Anything above .01 amps is not acceptable. (.005 on newer cars) Start pulling fuses as described above until you have the bad component in you hand.