I have a 1990 honda civic DX hatchback and it has a huge wiring ground issue and am unable to locate the spefic problem and find it. I understand its a grounding issue and electrical as per say when the car cranks, it fails to start likely due to whatever other electronic draining the power. I step on the brakes and the brakes turn on, but are dim and my dashboard indicates both turn signals are perpetually on while brakes are being pressed.
I move the lights to the on position (low beams) and both of my dash turn signal indicator lights are perpetually on and unresponsive when I turn the signal, but when lights are turned off, turn signals function.

More details is that when the car is being jumped (went through unplugging/plugging in lots of ****, yielded no results while being jumped) it will sometimes start and then the turn signal lights will be very dim and then the car stalls and dies. On a nice sunny dry day none of these issues exist. I suspect an exposed wire or corroded ground wire somewhere but don't know where to start. Was plugging/unplugging fuses and cranking to see if it would start but to no avail. Have been ****ing with this issue for months now and still no results.

Without the jumper cables on and if car successfully starts it will kill itself and the battery will be dead.

Knowing where the rear wire harnesses would help and I can unplug **** there, am no afraid of ripping out interior so any help would be appreciated. Thanks

The fuel pump is functional, carb has been checked, nothing mechanical is at fault here, it's entirely electrical.

 

Have you had your alternator checked, make sure all your fuses are good too under the hood and under driver side kick panel

 

it sounds like one of the junction connectors has come lose from ground, I don't know as much about the civc wiring as I don't have a manual, but someone with the factory electrical troubleshooting manual, and it should give you a flow chart to finding the issue,as well as show you where each ground point is

 

check your ground from battery to frame to transmission.