No start after pulling the mir relay.
 

Car won't start after I accidentally pulled the mirror heater relay. It shut off as soon as I pulled it. I was trying to diagnose a cooling fan issue and I pulled the wrong relay. All the electronics work except the starter doesn't even click and there dash doesn't illuminate other than the door open light. The supercharger coolant pump also won't come on. Fuses all show continuity (except one of the fan fuses but I replaced that one)


No fuel pump noise
No CEL
No Link on an OBDII scanner
Dash doesn't "Wake Up" when turning the car on.

Did you check that big fuse that's up on the battery?


humfrz

I did. Looks ok. Both bolts off the post have continuity. Also the headlights and radio are fine...

Does the starter have a relay? (I don't know)

If it does, did you check it?

humfrz - ain't much help - :sigh:

link to wiring diagram


check the 10A ECU IG1 7.5A MPX-B 15A HAZ 10a ECU ACC fuses they common to mirror heater and dash imobilisier

Thanks for the reply. Just went out and rechecked. All of those fuses look fine, have continuity across them and have 12v on the volt meter against a ground. (Battery ground or bolt in the door jamb)

I am old school, so I would disconnect the battery for a minute. This could reset the car.


When I unplugged the ABS fuse; I had to disconnect the battery cable to have it recognize that I had plugged the ABS fuse back in.

You need another person to start the car and while they are doing that check to see if you even have power going to the starter wires...

OBDII scanner says "No Link"

did I brick the ECU?

Ya, i left the negative side off overnight hoping... no dice.

I'm sure it's not just power to the starter. Too many other things don't work. With the key "on" but not turned to crank it doesn't even wake the dash up with the engine light and all that.

It kinda sounds like an ECU problem although I'd be rather surprised if pulling a relay would brick the ECU completely. You said the ECU fuse(s) are all good? Did you put a meter on them or just visually look? Sometimes fuses are bad even if they dont look it.

There is a fusible link in that circuit for the alternator.

The issue I have is that removing a relay shouldn't blow any fuses whatsoever.

I'm assuming you have a multimeter, so do this. Put one lead on the battery positive terminal and the other on the power wire of the alternator and let me know what it reads. (Have it set to DC volts)

I put a meter on them, visually inspected them and checked both sides of the fuses for 12v... all checked out ok.