If you take a reading across battery posts, everything off, and it shows 12.5 volts then you take same reading with key in the crank position and it still shows 12.5 volts, that isn't right. I didn't see EX model, looked at ES. Automatic doesn't show starter relay, manual tranny does. Yes, do a voltage drop test, if you are losing three volts from one end of same wire to the other end, replace wire.

Answered by JDL (expert)
14,402 answers provided

The first diagram is w/o antitheft.

Note diagram for ignition switch, the far right wiring color should be for starter.

Answered by JDL (expert)
14,402 answers provided

JDL
Sorry I wasn't clear on the voltage at the battery. I beleive all this is fine. I have 12.5v on the post with nothing turned on. I have 11v, while cranking and 14.4 once the engine is running. I will plan on running a new wire from the switch to the coil. This will eliminate a couple connection points. If I can't get to it tomorrow it may be over a week before I can get to it. Once I do I will let you know. I appreciate your help.

Response from derelectric
1 question asked

At the battery, that sounds ok. Let us know.

Answered by JDL (expert)
14,402 answers provided

I think I resolved my problem. I pulled the fuse to the Factory Alarm system I uhooked 3 years ago and wired around it. I have had no problem for 3 weeks. Apperantly I had not unhooked all of it. The circuit that tied to the ignition switch was still connected. The Alarm system has a lockout for the starter. I beleive the relay in the Alarm must not be making all the time giving me the low voltage at times.

Thanks for your help!

Response from derelectric
1 question asked

Glad you got it figured out. good luck

Answered by JDL (expert)
14,402 answers provided