Question about Mazda 323

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Free advice I have a Mazda sting 160I 2002. when using lights, wipers, radio the battery runs dead ive replaced battery, regulator and alternator 3 times already. the car works perfectly but as soon as i use the lights, the next morning the car is dead please advise urgently thanks Anne-Marie 072 245 4664

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  • 70 Answers

You almost certainly have a short circuit in your wiring loom, where charge continues to be drawn from the power circuit, even when the ignition is switched off. From your symptoms, I would guess you have sticky relay in the light circuit, which continues to stay connected even when you switch them off. Check your relays in that circuit and replace them. They shouldn't be too expensive..

Posted on May 13, 2014

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Posted on Jan 02, 2017

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motor1258
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SOURCE: electricall problem w/2002 V6 mazda tribute

When that light comes on, it is indicating charging system problem which could mean alternator not charging for one reason or another like loose belt, faulty alternator, or yes, bad battery or connection at battery, for example. First & easiest thing to do is check all your connections to battery, which you've probably done, and make sure they're tight & clean. Make sure belt driving alternator is good & tight, and in good shape. Now boost the vehicle to get it going & test voltage at battery, after you take cables off. My guess is in your case, the voltage will begin to go down, indicating a bad alternator, that will need to be replaced.

Posted on Jan 17, 2009

Rebgagnon
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SOURCE: 97 subaru outback legacy intermitent electrical problem

I would have all the grounds checked. Sounds like it is not grounding properly. This will in turn not allow the battery to charge correctly and will make other electrical devices to operate incorrectly. For example the body ground if not good it will try to find another ground IE the shift cable. This is not designed to maintain a connection of amperage and will allow battery to die. Also will cause problem with cable and could fatigue it enough to break. Just check for good grounds on motor and body. Hope this helps. Good Luck.

Posted on Jan 26, 2009

  • 206 Answers

SOURCE: good alternator & battery, but battery goes dead just sitting

The regulator could be sticking in the alternator. Unplug the alternator and see if the battery goes dead. I replaced an alternator once and the new regulator was bad.

Posted on Feb 15, 2009

  • 1 Answer

SOURCE: Toyota Hilux rev gauge,radio,windscreen wipers,oil gauge stopped

check fuses first

Posted on Feb 19, 2009

oldfishead
  • 155 Answers

SOURCE: battery not charging

check the fuses in the POWER DISTRIBUTION BOX under the hood, There is a 75A in-line fuse and #11 - 15A fuse see if they are good.... test your alt. loom for opens, and cables .....hope this helps...GL

Posted on Jul 06, 2009

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When you say everything goes dead are we talking all lights, radio, wipers? If so, main power or ground cables bad or fusible link. If just engine, check coil, ignition module, crank/cam position sensor.

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What is the problem with my mazda sting 160i 2002 model as soon as i use electrics like lights, wipers etc, the battery runs down. i've replaced battery, regulator and alternator 3 times already. It runs...


remove negative cable from battery, hook up a test light to the negative terminal. opposite end to negative on battery. start pulling fuses, when the light on tester goes out. thats the bad curcuit that is draining battery. wait about 3 minutes before pulling fuses. Good-Day!

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1 Answer

What is the problem with my mazda sting 160i 2002 model as soon as i use electrics like lights, wipers etc, the battery runs down. i've replaced battery, regulator and alternator 3 times already. It runs...


It sounds like something is drawing current 24 hours a day. When driving, the alternator keeps everything working. After you turn off the car, the battery is being drained by a short. The short can be anywhere, wiring harness, electrical connection points, etc. Have a mechanic check the current draw on the battery when the car is not running. It should draw a very small amount of current to keep the clock working. This will prove or disprove a electrical short. It is much harder to find the short. It can be expensive to fix if it takes hours to track down the problem. I would give the mechanic a time limit for diagnosing the problem to limit your out of pocket expense. There is nothing wrong with the battery or alternator. If they cannot find the problem within a reasonable amount of time. Trade in the car and buy another one. You do not want to spend thousands of dollars in repairs on a 12 year old car or a car with over 120,000 miles. I know you already put a lot of money in your car. Sometimes it is better to take your losses now than to keep putting more and more money into a car that is nearing the end of its useful life.

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this sounds like the alternator is only making enough current for daytime running and so the battery is barely charged. so when you use lights and accessories its draining it further. this could indicate a lose fan belt,(try the simple things first) or perhaps the regulator in the alternator, or maybe a dead cell in the battery

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Sounds like your voltage regulator is acting up, and at times will not let alternator voltage reach the circuit. At this point car stars drawing on battery alone (triggering battery light) and working until it is out of juice. Before you buy a new voltage regulator, make sure that its contact points on the alternator, and the plug from it to the vehicle circuit is clean, shiny and making good contact. These parts, due to their location tend to collect dirt and moisture, leading to an intermittent performance before they stop working completely.

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The gauge in your truck reads the alternator output. Following are the possible causes:

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The fact that it came back after turning off the heat and lights, I suspect the belt, and would start there.

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Yup, time for a new alternator. Most models have the regulator built into the alternator, so it makes it a little bit more expensive - but it will resolve your problems. If you are driving at night with a load on your charging system (lights and radio on), you will probably notice you have dim headlights. If you don't change it soon, you'll end up having to replace your battery too.

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When that light comes on, it is indicating charging system problem which could mean alternator not charging for one reason or another like loose belt, faulty alternator, or yes, bad battery or connection at battery, for example. First & easiest thing to do is check all your connections to battery, which you've probably done, and make sure they're tight & clean. Make sure belt driving alternator is good & tight, and in good shape. Now boost the vehicle to get it going & test voltage at battery, after you take cables off. My guess is in your case, the voltage will begin to go down, indicating a bad alternator, that will need to be replaced.

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1 Answer

Voltage regulator


Voltage regulator is built-in to the alternator assembly.

Have you tried replacing the battery?
A battery with a shorted cell will not charge properly and may even damage an alternator or regulator.

Note1: use a digital voltmeter (about $25 at Lowe's or Radio Shack) and check voltage across batt terminals while engine running. If more than 12.6 Volts DC and more typically about 13 Volts, then the alternator is working.

Note2: from Jan 98 to May 98 shows a different part # alternator than June - Dec 98
check the manufacture date on your driver door edge.

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