Jump to content

Reverse Polarity


Recommended Posts

 Hi everyone, I have an early 1998 wrx wagon that had a link G1 installed when I got it. Earlier this year jumper leads got put on the wrong way and now I have no electrics at all. I checked every fuse and relay with a multimeter and they're all fine.  I've opened up the ecu case to check for diodes and there are none on the ecu.  I found a burned resistor and an IC that looks like it's popped. Does anyone have a schematic or might know what the IC might be? I've circled the resistor and the IC in red. 


Cheers, NathanE


Link to comment
Share on other sites

  • 7 months later...
17 hours ago, Fabio_dxb said:

is there any fail safe on a g4+ fury in case the polarity get inverted?

There is a large TVS diode inside that should protect the ecu, assuming you have an appropriately sized fuse on the main supply as the wiring diagram shows.  If there is no fuse then it will possibly fry the diode.



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...