I have a 1960s British car with positive ground. Will this work with that, or does it only work on negative ground vehicles?
797682
I have used to to check trailer wiring with a separate battery and it works fine with that. The tip can also act as a current source or sink so all your testing will be backwards. You could not just switch terminals for positive and negative that would mess with the electronics of the unit. I would email the customer support people at power probe for their opinion. All the operations would be "backwards" for you as would all voltage readings.
1658518
I wired it up in my 1962 Min and My 1965 Mini, works great... I also use them in both my Campagna T-Rex
932415
Yes, it should work on most cars nowadays. As long as it has obd2 support but it's become somewhat of a standard on most vehicles after the 90's so yes. I have it anf I have used it on a variety of cars and have not had any issues as long as it has obd 1 or obd 2
2034628
This tester will work on many models but as in most German applications you will need a adapter? They are usually inexpensive and will work with other vehicles also..being that old of a vehicle it just might work without any?
1107684
Yes, I found this strange too. I used this in a car application. Had to hook up both positive and negative through the switch to make this work. I thought I could ground the motor, and control the positive. Oh well. Still got it to work.
1525531
Hi the fuse box it's only for the positive cable, negative cable goes to the ground (car chassis) any place in car metal plates...
1581333
if i understand your ? its 5 volt DC which means either + or - will have 5 volt to ground the other will have 0 volts to ground. so use your volt meter to check as some cars may be wired backwards otherwise d+es should have the 5 volt
1399743
Any metal part on your car (as long as it makes contact with the negative terminal) is your ground.
1975773
One on positive. Usually negatives are attached to metal on car body...as long as car body is "one piece" or ground wires -thick like the one from battery to engine block-are connected from engine to cab (passenger section). Also, anytime you attach a negative (black wire) to the body, make sure there is bare metal where the screw holds wire into body (use wire brush or wire brush on drill to make sure there is bare metal at the connection). In other words, make sure you have a good "ground" (negative from battery to car engine AND body). Power side (red/12 volts/positive terminal) is the one you need to have an in-line fuse for. Hope this helps. One on positive. Usually negatives are attached to metal on car body...as long as car body is "one piece" or ground wires -thick like the one from battery to engine block-are connected from engine to cab (passenger section). Also, anytime you attach a negative (black wire) to the body, make sure there is bare metal where the screw holds wire into body (use wire brush or wire brush on drill to make sure there is bare metal at the connection). In other words, make sure you have a good "ground" (negative from battery to car engine AND body). Power side (red/12... » Read More One on positive. Usually negatives are attached to metal on car body...as long as car body is "one piece" or ground wires -thick like the one from battery to engine block-are connected from engine to cab (passenger section). Also, anytime you attach a negative (black wire) to the body, make sure there is bare metal where the screw holds wire into body (use wire brush or wire brush on drill to make sure there is bare metal at the connection). In other words, make sure you have a good "ground" (negative from battery to car engine AND body). Power side (red/12 volts/positive terminal) is the one you need to have an in-line fuse for. Hope this helps. « Show Less
1066874
We bought it for a 2005 Maxima. It did not work. From what I have learned it works on very few car models beyond 2001.
48475
I am istalling it on a 48 Studebaker with positive ground. A word of caution. read somewhere if it installed in reverse polarity, the pump will run, but not output anything. And if your Ford is six volts, as my Stude, get a six volt pump. don't mess with voltage changes. Tipsfrom other owners tell me it will flow thru if turned off and only the old pump reunning. Guess its real purpose is to overcome vapor lock.Remember those ?
839965
If I understand the question, the indicator light is on when the signal is off. I had that happen to me when I bought a flasher unit that was made for a negative ground system while mine is a positive ground system. Once I replaced that unit with a flasher compatible with a positive ground system, everything worked fine. Older flasher units were all mechanical so it didn't make any difference. The newer units have a switching transistor that is polarized for either positive or negative ground. I hope this explanation helps!
723530
I would suggest either using a voltmeter or going on the forums. I googled it and didnt find a picture of your connector behind the mirror. But if it has power, chances are the product will work. Just need a ignition on power source and a ground.
568926
I bought it for a 1966 Mustang automatic non AC car and it works perfect. Mine is a6 cylinder also. Hope that helps.
245416
One wire goes to positive, but the other wire just needs to be grounded to your vehicle, not the negative wire, this should fix the problem.
2254543
In a word yes. Same as pulling off negative battery cable. Most cars from 80's on up have computers that will cause a draw if vehicle sits for a long period of time.
791826
There is no positive and negative. It's basically an on and off switch. It will work on ether side. I use it on my Model A Ford to cut the battery off. I put it on the negative side of battery like is "battery-switch-cable to starter and rest of car". Model As are backwards. On modern cars I would put it on the positive side. For the price it works great.