Do I have a bad ignition switch?

50

Asked by Aug 26, 2017 at 07:39 PM about the 2000 Dodge Durango SLT 4WD

Question type: Maintenance & Repair

new battery, new alternator.
no interior lights, no instrument lights when key is turned.
started and ran well twice. Third time needed a jump.
4th time, no lights, no instruments when key turned.
12.8V across battery terminals, relay tested normal on V meter.
Fuses not blown, contacts clean.
Do I have a bad ignition switch?

12 Answers

3,330

What comes across battery terminals when running? Did you do voltage drop on battery cables? Check ground contacts and voltage drop? What relay was tested? Starter? Main ECM relay? Did you replace battery or alternator first? Did old alternator ruin new battery?

3,330

You could have a bad ignition switch. Does dash lights stay on longer than they normally would after starting? This issue will drain battery quickly.

50

Thank you, but no, that wasn't a problem. At the moment there is no power into the cabin; no lights, nothing. Yesterday I replaced the alternator fuse, and verified that the ignition and starter fuses had continuity; they also looked intact with a visual. I have 12.7V at the starter solenoid, the negative cable grounds were tight. I checked both leads for the ignition switch, no voltage. I think I have narrowed it down to the battery cables, the ignition switch (I could have measured for voltage incorrectly), or, ouch, the fuse block circuit board. I have not verified ohms at the ground connections yet. But, that may take care of itself when I replace the battery cables. More thoughts?

1 of 1 people found this helpful.
3,330

Did you check any relays or power to the fuse block on these important relays and fuses relating to ignition. Also the main relay needs checked.

3,330

Check all grounds, alternator, engine and body grounds.

50

Checked ignition fuses, they were ok visually and had continuity with the ohm check. I have not checked the main relay. I will let you know. Thanks.

1 of 1 people found this helpful.
3,330

Starter and fuel relays also

3,330

Did you verify body ground? Maybe like a fusable link?

50

I appreciate the to-do list, as I was out of ideas. Thank you. I will let you know.

1 of 1 people found this helpful.
50

I replaced the battery cables, cleaned ground connections and it worked. Thank you.

1 of 1 people found this helpful.
3,330

Sounds awesome!!! Crazy how one wire can do so much. That deserves 2 thumbs up!!!!!

50

Thank you for that and the great questions and answers!

1 of 1 people found this helpful.

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