I've got a crank no start. Does anyone have an engine wiring diagram for an 88 22R? I have power at the ignition switch, but none at the coil. No voltage present either side of the 7.5 Amp IGN fuse in the left kickpanel, HOWEVER, if I inject +12V into the IGN fuse holder via PowerProbe or similar I can get the truck to run. I'm trying to figure out how the IGN fuse plays into the engine circuit. Are there any related relays involved? A wiring diagram would be super helpful!

I have a TIS subscription, but it doesn't go back to 88... I usually work on modern Toyota's where there is plenty of info for troubleshooting...

 

This thread may help with your testing of IGN circuit & had this diagram in it;

https://www.yotatech.com/forums/f131...-light-300222/