Hi Guys,

I am trying to hunt down a grounding problem and see if there is any actual connection between the two problems.

First my handbrake light is all no matter what. Handbrake lock or released.
Second my windshield wipter motor is also running, and its gets hot.

Do they share a common round? if so do you guys know where it might be? I am running a Haltech at the moment and there is a ground loop detected warning, everything was working prior engine out rebuild also.

Thanks alot for you guys input.

 

Dash brake light…first thing I’d do is check fluid level. IIRC the dash light can be a low-level warning. Otherwise it’ may be a switch issue.
Are you saying your wiper motor is running even without being switched on?

There are engine grounds. Are yours connected and clean? Augmenting those grounds is easy and a good idea anyway. Battery to engine. Engine to chassis. Chassis to battery. Not familiar with Haltech but it it relies on O2 feedback there’s also a ground strap downstream on the exhaust that typically gets sketchy.

 

Thanks Sgtblue, indeed it was the brake fluid. It is a newly built motor so I haven't got around bleeding the brakes yet. This is the cause for the handbrake light.

But still hunting for the wiper motor issue. I am using a haltech R3 and it tells me I have a ground loop issue. So I suspect it's grounding more than the motor itself. And yes, it run as soon as I plug it in, swtich on of off. The wiper stays up and not not move at all, just the motor itself gets warm or hot.

 

If your ground contact points are clean, you shouldn't need to add extra grounding straps and cables (replacing with upgraded cable is different), but just adding more ground cable is just adding weight and congestion to the engine bay.

Doesn't sound like a ground issue anyway....the ground is working. Sounds like either internals to the wiper motor are touching, or your combination switch has an issue.

Wires for the wipers literally wrap around the ENTIRE front end of the car. Combination switch -> Instrument Harness -> Joint Box -> Front harness (driver side) -> Firewall -> from steering column area to left headlight, across to right headlight, rear to wiper motor. I'd venture they are the longest wires in the entire car and there's like 5 of em. Lot of space for issues to happen. Let alone the motor and switch are so many years old. I'd bust out the multimeter and check contacts at switch and motor to see whats up to start with.

I shortened my wiper system, they go across the dash and out the passenger side firewall and right to the motor.