Question about 2002 Toyota MR2 Spyder

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My mr2 won't start. no accessory lights on.

Want to change battery. how do i tell which is pos. terminal and which is neg. on cables not battery

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The positive which is normally red goes to the starter solenoid. The negative or ground (black wire) bolt to the engine and body.

Posted on Jul 02, 2009

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1 Answer

How do you give a jump start to someone using a 2007 Dodge Charger?


The underhood connections can work by themselves...POS to POS, and NEG to NEG...sometimes dirty/weak connections do not allow the power to transfer fully from the underhood connections...if this is the case then you need to connect directly to the battery in trunk for full power charge...again POS to POS, and NEG to NEG...hope this helps

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My 77 Chevy c30 has no power. Jumped started it and drove it home. I turned it off then tried to restart it. No power no lights. nothing. Battery is good. An u help will be appreciated.


If the battery is good you will need to follow flow. Test light is the easiest to use. First hook light to ground and touch pos terminal,lights good next touch pos battery cable end, lights good. Next follow pos cable to starter pos terminal,lights good. Next hook test light to bat pos teminal,touch neg terminal,lights good. Then touch engine block, lights good ground. Next move test light clamp back to ground/neg side and touch alt pos terminal,lights good.if all that tests good, if all good move inside and check for power at ign switch pos term if at any time you dont find power you have wiring issue that needs to be addressed. Let me know what you find. Russ

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How do I hook up this unit Two wires or four


Almost all car batteries have 2 pos and 2 neg. More precisely, 1 pos post and 1 side connector, 1 neg post and 1 neg side connector. You only usually use use one set or the other depending on what connectors are on the end of your cables. You can connect something else to the side posts if you need to, but generally only pair is used.

Feb 28, 2015 | Cars & Trucks

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Convert battery cables from top post to side mount replacement ends?


If all you are doing is changing to a side post battery, just connect all the positive cables from the old pos post to the new pos holder and all the neg ones to the new neg holder. If you've already cut them all off and not sure where each wire goes, all the reds are positive, all the blacks are neg. To make sure use your continuity meter to test. Connect one meter lead to any good clean metal part on the car and test between each black wire in turn, the neg ones will show a circuit, the pos ones will not.

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I replaced the battery terminal cable ends. Now the car will not start, There is a clicking noise from the starter.


Bad connection on cable ends or where they connect to battery. Quick check is if you have a good set of jumper cables, use the jumper cable as a replacement for what maybe the defective one. Hook negative cable good to battery neg. post and then put other side on neg cable to engine ground on block. See if it cranks, if it does than the trouble is on the neg. cable. If not then put positive cable on pos. post of battery. Then put other side of pos. cable on the starter post, try to start. If it cranks then the trouble is on the pos side of cable. Hope this helps.

Nov 16, 2013 | 1996 Geo Prizm

1 Answer

Gauge showing low output alt only 1yr old wondering if it could be regulator or batt or wiring


if you have access to a digital multimeter, connect the meter (set to volts) across positive and neg. terminal of the battery, should read roughly 12.6 volts, close to 10 volts, battery may be going out, also test the alt output, disconnect neg term and place negative lead to battery neg post and positive lead to neg battery cable (make sure meter is set to amps) should read near the rating, if both those, then you'd want to do a resistance test, (set meter to Ohms) disconnect battery and connect meter neg to either pos cable terminal or where the pos cable connects to the alt and connect positive lead to opposite of neg, should read next to 0, the check resistance of the ground by connecting meter between batt neg cable and body of alt.

- Spenser

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2 Answers

How do I tell the difference between a pos and neg cable on a 1004 corolla?


positive goes to the starter and ground goes to the body ground

Jan 19, 2011 | 1994 Toyota Corolla

1 Answer

On cold mornings, car won't start the first 2 tries, open the hood and slam the hood and the car starts. please help.


YOU EITHER NEED AN AUTOMATIC HOOD SLAMMER, OR CLEAN THE BATTERY TERMINALS, REMOVE NEG. CABLE FIRST, THEN THE POS. CABLE CLEAN BOTH CABLES & BOTH BATTERY TERMINALS BRIGHT & SHINNY. PUT POS. ON BATTERY & TIGHTEN. LAST THING PUT NEG. CABLE ON & TIGHTEN. IF THE PROBLEM STILL EXISTS, HOLD THE IGNITION SWITCH IN START POSITION, HAVE SOMEONE TAP ON THE METAL PART OF THE STARTER WITH A MEDIUM SIZE HAMMER. IF THAT MAKES THE STARTER REACT, THE STARTER IS PROBABLY BAD.

Jan 11, 2011 | 2006 Hyundai Tiburon

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How to hook up 2 new batteries


hook them up in parallel, pos to pos, neg to neg from one battery to another, then pos cable to battery prs and ground cable to neg battery

Jul 29, 2010 | Renault Fuego Cars & Trucks

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