Question about Toyota Cars & Trucks

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Blown fuse, alternator or regulator?

2000 Toyota MR2. While driving I lost power to dash lights, headlights and all indicators, heater fan, wipers, windows and locks. I also noticed that the power steering assist was apparently gone. Serpentine belt OK.

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  • Toyota Master
  • 14,337 Answers

Check your alternator at Autozone.

Posted on Oct 30, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75822 Answers

SOURCE: power steering light

There are sensors that control steering effort (variable assist) and also valving in some cases, one of these has a problem, I would have the system tested to see what the fault is before it developes a problem u can feel.

Posted on Nov 11, 2008

  • 1 Answer

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

check fuses first

Posted on Feb 19, 2009

  • 1 Answer

SOURCE: power winidows, wipers, dome lights not working on 1998 explorer

This could be a combination of electrical issues, although i feel that the timing is coincidence in this case. When the combination is elec. windows, wipers, and dome lights this is indicative of the GEM module located behind your radio. The GEM (generic electronic module) is an electronic body control module that regulates electrical flow through a number of accessories.

These factory module boards are notorious for acting quirky by failing to ground intermittently until failing completely. I would be cautious in replacing ignition switches, locks, etc. as the issue can be also compounded by corrosion of the main battery ground wire in the engine compartment and which can cause frying of your under dash wiring into the main wiring harness which can get expensive (i speak from experience having had the exact same syptoms). My issues were that these symptoms occurred only in full ON. When in key BACK ACC mode, they disappeared.

New price for one of these modules is around $280-$300 and easily replaced.

Good Luck

Posted on May 21, 2009

  • 4 Answers

SOURCE: Toyota Highlander 03, battery light on, alternator

I think you need a new alternator. Also check every fuse in depth. Make sure all the connections are in place and secure.

Posted on Dec 15, 2009

  • 347 Answers

SOURCE: 1990 Camry Fuse Diagram. The following suddenly

REPLACE BUSTED FUSES

Posted on Jan 01, 2010

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Sounds like yoh have a mega fuse fuse at the power distribution junction blown. That is the only pce all of those components come together. If nothing electrical is working then you would have a blown mega fuse or a bad ground, short, or something along those lines. Just start at the power distribution under the hood and work your way down from there. Check the under hood fuses as well as grounds and power cables for corrosion and breaks. Good luck.

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Battery wont charge, battery/ABS/SRS/BRAKE lights come on while driving and flicker. voltage increases to dash lights/fan speed/headlights periodically.


Get a volt meter, start your car and see how many volts your car is producing while running. Should be around 14 volts. May want to watch the meter for a while since your electric seems to fluctuate. Most voltage regulators are internal of your alternator. If you are getting a lot more or less than 14 volts while running, replace the alternator. If it is not charging, voltage will drop as vehicle runs, until battery is dead.

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No power to dash lights indicators wipers in toyota1987surf


Hi Am, Open the hood and check the fuses inside the fuse box. I'm sure you will find one which has blown. If that fails, check the wiring from the battery terminal on the positive side. Regards John

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No power to fuses on Fiat 14 ducato van (1987) alternator charging, headlights, horn, hazard all ok, no power to indicators, wipers, heater fan, fuel gauge, temp gauge. all fuses are ok, engine starts


Sounds like the relay is bad, look in the fuse panel or under the dash for a lil black box, they are usually appx 1"' x 1" and there should be several of them. You may want to check owners manual or a repair manual to find the location. They should be listed in the schematic of the fuse box as well.

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I lost my heater fan,my turn signals,my wipers,gages ,n dash lights ,all at the same time


Wilt,

It seems from the description of the problem that the fuse has blown. Please check the fuse box for a blown fuse and replace it with an exactly the same value.

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I have a 1993 VW Passat VR6, My problem is when I try to start it, I have no spark from the spark plugs..What could be the problem or how do I fix this?????


GO TO THIS SiTE TO CHECK THE FUSE BOX!
http://vwtech.no-ip.info/images/golf/post90.gif

This are the FUSE and RELAY number SLOT!
Fuse No. Description Ampere Rating 1 Headlight, low beam, left 10 2 Headlight, low beam, right 10 3 Instrument panel lights, license plate lights 10 4 Glove compartment light 15 5 Wiper/washer 15 6 Fresh air blower 16-valve only: Air conditioning 20 7 Taillights, side marker light, right 10 8 Taillights, side marker light, left 0 9 Rear window defogger 20 10 2.0 16-valve only: Fog lights 15 11 Headlight, high beam, left,High beam indicator light 10 12 Headlight, high beam, right 10 13 Horn 16-valve only: Radiator cooling fan 10 14 Back-up lights, washer nozzle heaters 10 15 2.0 16-valve only: Engine electronics, stabilizer valve, cold start valve 10 16 Instrument panel warning lights, 16-valve only: Multi function indicator 15 17 Emergency flasher switch, turn signals 10 18 Fuel pump, oxygen sensor heater 20 19 Radiator cooling fan, air conditioning 30 20 Brake lights, cruise control 10 21 Interior lights, digital clock 16-valve only: Luggage compartment light,multi function indicator, central locking 15 22 Radio, cigarette lighter 10
Relays Relay No. Description 1 Air conditioning 2 Open 3 Digifant control unit 4 Load reduction relay 5 Low coolant level control unit or Open 6 Emergency flashers 7 Rear Wiper 8 Intermittent wipers 9 Seat belt warning system control unit (possibly headlight warning too?) 10 Fog lights 11 Horn 12 Fuel pump (except diesel)Glow plugs (diesel) 13 Radiator cooling fan after run (except 16-valve)2.0 16-valve: Starter interlock relay 14 Automatic trans., coolant temperature indicator,starter interlock relay (except 2.0 16-valve)2.0 16-valve: Radiator cooling fan after run 15 ABS pump relay 16 ABS relay 17 Heated seat control unit, driver 18 Heated seat control unit, passenger, or power seat circuit breaker 19 Automatic transmission 20 Open 21 Power window relay, ABS hydraulic pump fuse 22 ABS valves fuse 23 Air conditioning, power seat fuse 24 Power window fuse

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check glow plugs and timer...Make sure you have voltage at the glow plugs...

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Charging Problem 1993 toyota pickup


Hello! I too am PA St Insp Mechanic.

Here are some suggestions:

Note that the Fuel injection computer starts to cease to work properly at 10.5 VDC. This leads me to a voltage issue. You mentioning that the veh has bright headlamps may be consuming more power than the alt can deliver, with the heater, the lights and the other "normal" draws.

Test the alt output with a voltmeter, plus to plus, minus to minus, at the battery. You should read 14 + volts with all of the above mentioned accessories on, at idle. 11-12 volts = bad alternator, unless the belt is real slipping bad. 14.4 is the spec.

Also, the Voltage Regulator in inside the alternator.

Glad to provide assistance to you; please rate my help with a FixYa, I would be very grateful.

Jan 22, 2009 | 1993 Toyota Pickup

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