Electrical issue with door locks

[Serge]

I came across a weird issue on my Marauder.

Here is what happens. When I have my ignition key turned to run and I try to hit lock or unlock on the master switch nothing happens. If I try to do the same on the passenger door the unlock would turn the interior lights on and lock would cause fuse 23 to blow. With ignition key to off position everything works normally.

I looked up fuse 23 and this is what is shown. EATC module, Instrument cluster, Clock, LCM, Interior lamps, Door lock switches.

Seems like there is a short in one of those circuits that's causing the other stuff to act up. Has anyone come across something like this before who can point me in the right direction?

[fastblackmerc]

I came across a weird issue on my Marauder.

Here is what happens. When I have my ignition key turned to run and I try to hit lock or unlock on the master switch nothing happens. If I try to do the same on the passenger door the unlock would turn the interior lights on and lock would cause fuse 23 to blow. With ignition key to off position everything works normally.

I looked up fuse 23 and this is what is shown. EATC module, Instrument cluster, Clock, LCM, Interior lamps, Door lock switches.

Seems like there is a short in one of those circuits that's causing the other stuff to act up. Has anyone come across something like this before who can point me in the right direction?

Disconnect the main components plug them back in one at a time until you find the circuit or component that is causing the short.

[BAD MERC]

PM me your VIN. I use Identifix at work and this issue will be a platform problem and not just one particular vehicle.