Question about Jaguar S-Type

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2000 Jaguar SType New battery is completely dead after three days, starter and alternator are both good, and we have disconnected radio believing it might be a drain, what about fuses?

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  • Jaguar Expert
  • 489 Answers

Hello
We had a similar situation and we found out that the battery was the cause , even though it was new.

Try with another battery that you know is good from another car, if still having a problem , check the starter for drainage

Posted on Aug 16, 2017

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Posted on Jan 02, 2017

The Machine
  • 788 Answers

SOURCE: Car Battery draining over night

Something is shorted and it could be very difficult to find sometimes. It could be something as simple as a button being pressed when it shouldn't turning on a light or feature that runs all the time, but in a 2001 that is unlikely as it should turn off all lights after a certain period of time. It could be something in the radio. What I suggest is to pull one fuse at a time for accessories, check your manual for what each fuse powers. If the battery still drains with that fuse out then put it back in a pull another. When you find the fuse that allows your battery to keep it's charge then you will have a much smaller field of offending components.

For example, if you pull the fuse that powers the radio and heater, and the battery keeps it's charge then you know it is either the heater or radio causing your problem.

This can take a few weeks to do completly but won't cost you a penny to do.

Posted on Jun 09, 2008

  • 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

  • 320 Answers

SOURCE: 1998 Corvette drains the battery in less than 2 days.

No, corrosion will not cause a battery to drain, even if the corrosion is on the terminals. Several factors can cause battery drain, I would first have the battery tested to see if the battery it self is not bad. If the battery is good, then the most common is a short. All most all new cars have a certain amount of drain,(measured in milivolts) this drain is for clocks and computer memory's, and it would take several days of a vehicle sitting for the battery to be drained. Don't immediately assume you have a problem if you see 2-6 milivolts of drain on a battery with the key out, now if your battery is being drained after being parked over night, you have a problem. The easiest way to pin down the problem short is to disconnect your positive battery cable from the battery, take a 12 volt test light and clamp one end to the positive cable, and hold the probe to the positive post. Now if you have a short the light will come on. Have someone help you by pulling the fuses one at a time. If when a fuse is pulled the light goes out you have isolated the short to that system. If you pulled all the fuses and the light never went out try disconnecting all the wires from the alternator, 9 times outta 10 do this will let you know where your short is. If the system is not critical like power locks some people just leave the fuse out. 

Posted on Mar 05, 2009

Mr BrokRench
  • 1623 Answers

SOURCE: 2000 Navigator - something draining on battery - goes dead

Hellokrissypoo4...Your navigator has what is known as a parasitic battery drain...meaning, something in the vehicles system is not turning off...here is the way i test for this, you will need a digitial multimeter to perform this test...when doing this test make sure that the dome light, under hood light, trunk light, etc. are OFF.

  1. Remove the negative side battery cable from the negative battery terminal.
  2. Attach an ammeter(this measures amperage) between the negative cable and the negative battery post. wait a few seconds to several minutes for the car to go into sleep mode. i.e. when you make the contact with the test light the cars computer systems "wake up" after a bit of time they will go to "sleep".
  3. If the ammeter is reading over 25-50 milliamps, something is using too much battery power.
  4. Go to the fuse panel(s) and remove fuses, one at a time. Pull the main fuses (higher amp ratings)last. Be sure to observe the ammeter after pulling each fuse.
  5. Watch for the ammeter to drop to acceptable drain. The fuse that reduces the drain is the draw. Consult the owners' manual or service manual to find what circuits are on that fuse.
  6. Check each device (circuit) on that fuse. Stop each lamp, heater, etc. to find the drain.
  7. Repeat steps 1&2 to test your repair. The ammeter will tell you exact numbers

    NOTE:
  8. Some after-market alarm systems may make this test too long or loud to be worth the effort. If that's the case, seek professional help.
  9. In more and more models made after 2003 disconnecting the battery will reset the PCM requiring the modules to relearn. In certain cases this requires a factory scan tool. It is best to take such cars to either the dealer or a professional in auto electrical systems.
  10. Be careful working around the battery in a car
Good luck krissy..i hope this helps..please rate me a fixya.

Posted on Jul 22, 2009

juncro
  • 467 Answers

SOURCE: Everything works great..However periodicaly radio

the radio is pulling down the battery, check to make sure it is install properlt, also make sure your battery is not weak, because remember the radio draws power at all time, to keep the time and your preset radio station. so check the battery for proper strenght first please.

Posted on Jul 31, 2009

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It would not be the alternator since it only works when the engine is running. Could be the starter, the neutral safety switch, or a wiring issue. I am assuming the anti-theft system is functioning.
Someone would need to check for power at the starter to proceed.

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Meanwhile, I would look for a fuseable link or main fuse problem. The alternator circuit may not be connected to the fuse box and battery.

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Have you another key and fob ?

Try lock/unlock cycle with new key + fob. Your key may be corrupted.

Try also just unlocking the car with the key (not the fob) as soon as you unlock the door put the key in the ignition immediately and see if the car starts.

If you have your radio code it may be worth trying a total reset (leave the car unlocked) disconnect the battery and leave for 20 mins. then reconnect, most systems will then reboot and this MAY help?
Failing all the above it looks like dealer time - more ££ss

good luck !

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