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Electrical issue, suspect broken ground.....

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CrawlinZX14

10+ Year Contributor
502
4
Sep 7, 2011
Carpentersville, Illinois
Ok, so here is the rundown. Some have been an issue since I bought the car, others happened more recently and I am at a loss as to where to start.

So here is a list of the issues.

Head lamps stay on high beam no matter what. ( problem all along) and using the switch on the column changes it, but high beams are ALWAYS on.

Pass rear brake light does not work only when head lamps are on. ( problem all along, even replaced bulb)

Pass side corner markers do not work. ( new problem, replaced bulbs after problem started and still nothing )

Dash Dimmer switch does not dim the cluster at all. (never really used so unknown when it started)

Stereo face dims when brakes applied ( intermittent issue only when headlamps are off)


Now, the only wires I have bothered with since I bought the car a couple months ago was installing my radio. And that was with a harness adapter. I plan to check that ground as a starting point. Will grounding that to the chassis and removing it from the harness ground cause an issue? My radio is also getting a ton of electrical static which is why im thinking bad ground. I am getting ready to install the battery in the hatch and would like to fix these issues before I move it. I have also checked the resistance of the upper 2 grounds to the chassis, and both seem OK. From the intake to the firewall, and from the battery to the firewall. I am still trying to track down the batt to the block one as I want to verify the wire before checking both ends just to be sure.

Can anyone shed some light on this, or offer some other places to check? Its driving me nuts and dont want it to keep getting worse.
 
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