Question about Toyota Cars & Trucks

Open Question

1981 toyota pickup charge light stays on

Changed the generator and voltage regulator. light still on

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 375 Answers

SOURCE: 1970 VW Beetle voltage regulator

loud your battery again and see if ti keep running it down--if yes check the battery loading size it suppose to be around 12-13.
less then 9-10 in most cases it's the alternator cause another thing is your battery could be out of work

Posted on Jul 01, 2008

  • 416 Answers

SOURCE: I have a 1982 Toyota pickup. I have a voltage

sounds like it is a bad regulator

Posted on Mar 24, 2010

  • 129 Answers

SOURCE: voltage regulator for 1988 dodge ram pickup 3.9

on back of alternater

Posted on Jun 18, 2010

  • 2 Answers

SOURCE: 90 dodge pickup v6 code 41 will not charge

i have a solution to this problem... unless you have already fixed it?

Posted on Aug 27, 2010

  • 237 Answers

SOURCE: 1997 Sentra GXE Battery light goes on and off

probably is the regulator.....it is located inside of alternator.best bet replace entire altternator and be done with it.

Posted on Feb 26, 2011

Testimonial: "Thanks for quick response. The answer saved me a lot of time and trouble."

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is causing the battery to drain?


Running the car will drain the battery it if it's not charging ! An if your charging light is on it isn't charging ! Did you check power an grounds on the alternator ? There is a single heavier wire on the back of the alternator, this should have battery voltage ! You may want to take this to a ASE certified repair shop !
Functionality
With the ignition switch in the RUN position, voltage is applied through the warning indicator I circuit 904 (LG/RD) to the voltage regulator. This turns the regulator on, allowing current to flow from battery sense A circuit 35 (OG/LB) to the generator field coil. When the engine is started, the generator begins to generate alternating current (AC) which is internally converted to direct current (DC). This current is then supplied to the vehicle's electrical system through the output (B+) terminal of the generator.
Once the generator begins generating current, a voltage signal is taken from the generator stator and fed back to the regulator S circuit 4 (WH/BK). This voltage feedback signal (typically half the battery voltage) is used to turn off the warning indicator.
With the system functioning normally, the generator output current is determined by the voltage of the A circuit 35 (OG/LB). The A circuit 35 (OG/LB) voltage is compared to a set voltage internal to the regulator, and the regulator controls the generator field current to maintain the correct generator output.
The set voltage will vary with temperature and is typically higher in cold temperatures and lower in warm temperatures. This allows for better battery recharge in the winter and reduces the chance of overcharging in the summer.
Battery Positive Output (B+) Circuit 38 (BK/OG)
The generator output is supplied through the battery positive output (B+) terminal on the back of the generator to the battery and electrical system.
I Circuit 904 (LG/RD)
The I (ignition) circuit 904 (LG/RD) is used to turn on the voltage regulator. This circuit is powered up with the ignition switch in the RUN position. This circuit is also used to turn the charging system warning indicator on if there is a fault in the charging system operation.
A Circuit 35 (OG/LB)
The A (battery sense) circuit 35 (OG/LB) is used to sense battery voltage. This voltage is used by the regulator to determine generator output. This circuit is used to supply current to the generator field (rotor). The amount of current supplied to the rotor will determine generator output.
S Circuit 4 (WH/BK)
The S (stator) circuit 4 (WH/BK) is used to feed back a voltage signal from the generator to the regulator. This voltage is used by the regulator to turn off the charging system warning indicator. The S circuit is fed back externally on external mounted regulator generators.
Visual Inspection Chart Mechanical Electrical
  • Battery case, posts, hold-down clamp, cables and connections
  • Generator drive (serpentine) belt for condition and tension to make sure there is no slip between the belt and the pulley. For additional information, refer to Section 303-05 .
  • Battery charge
  • Generator pulley
  • Battery junction box (BJB)Mega Fuse
  • Battery junction box fuse:
    • 11 (20A)
  • Central junction box (CJB) fuse:
    • 30 (30A)
  • Circuitry
  • Charging system warning indicator
  • Cables
  1. Check the operation of the charging system warning indicator lamp (instrument cluster). Normal operation is as follows:
    • With the ignition switch OFF, the charging system warning indicator should be OFF.
    • With the ignition switch in RUN and the engine off, the charging system warning indicator light should be on.
    • With the engine running, the charging system warning indicator light should be off.
  1. Verify the battery condition. Refer to Section 414-01 .
Normal Charging System Voltages and Charging System Warning Indicator Operation Ignition Switch Position A Circuit 35 (OG/LB) S Circuit 4 (WH/BK) I Circuit 904 (LG/RD) Generator B+ Circuit 38 (BK/OG) Battery Engine to Battery Ground Charging System Warning Indicator Operation OFF 12 volts 0 volts 0 volts 12 volts 12 volts 0 volts Off RUN-engine off 12 volts 0 volts 1-3 volts 12 volts 12 volts 0 volts Illuminated RUN-engine running 13-
15 volts 1/2 battery voltage 13-
15 volts 13-
15 volts 13-
15 volts 0 volts Off
  1. If the customer concern is verified after the initial inspection, refer to the Symptom Chart to determine which tests to carry out.
    • The charging system warning indicator is on with the engine running (the system voltage does not increase)
    • Circuitry.
    • Voltage regulator.
    • Generator.
    • GO to Pinpoint Test B .
    Your whole problem is the alternator is not charging , a couple tests with a volt meter would tell you !

Aug 16, 2015 | 2001 Ford Expedition

2 Answers

Brake light and battery light stay on i need to know what that means for my engine


check alternator out put should have 13.5 - 14.5 volts at battery with engine running.if not alernator voltage regulator faulty.any time you see brake light and charging light flashing alternator not putting out enough power to work the antilock brake system.

Dec 09, 2012 | 1993 Toyota Pickup

1 Answer

I have an 86 toyota pcickup battery charge light is on have good battery and replaced alternator twice.


i think you have an external voltage regulator in that year , ck that first . The easy way to tell if it has an external regulator ,if it has carburated it has an external regulator if its fuel-injected its internal regulator in side the alternator.Have you checked to see how much voltage the charging system is putting out at an idle ? It should be around 13.5 volts to 14.5 volts any less then 12.5 charge light won't go out.

May 05, 2011 | 1986 Toyota Pickup 4WD

2 Answers

84 toyota. altenator not charging


The diagram shows a capacitor between the regulator red wire and ground on some models. If your truck has that cap, you may want to check it or replace it. I don't see anything else on the diagram that could cause this behavior, unless there is a bad connection somewhere. If that red wire powers the field winding, a bad cap could be pulling down the voltage.

Jun 18, 2017 | 1989 Toyota Pickup SR5

1 Answer

New batteries and alt. still no charge.


Generator with Integral Rear Mount Voltage Regulator, Internal Fan Type With the key in the RUN position, voltage is applied through the charge indicator lamp I circuit to the voltage regulator. This turns the voltage regulator on, allowing current to flow from the battery sense A circuit to the generator field coil. When the engine (6007) is started, the generator (GEN) (10346) begins to generate alternating (AC) current which is converted to direct (DC) current by the rectifier internal to the generator. This current is then supplied to the vehicle's electrical system through the battery positive voltage (B+) terminal located on the rear of the generator. Once the generator begins generating current, a voltage signal is taken from the stator and fed back to the voltage regulator S circuit, turning off the charge indicator/lamp. With the system functioning normally, the generator output current is determined by the voltage at the A circuit. This voltage is compared to a set voltage internal to the voltage regulator, and the voltage regulator controls the generator field current to maintain proper generator output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge. With the system functioning normally, the generator output current is determined by the voltage of the A circuit (battery sense voltage). The A circuit voltage is compared to a set voltage internal to the voltage regulator, which controls the generator field current to maintain proper output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge in the winter and reducing the chance of overcharging the battery in the summer. A fuse link is included in the charging system wiring on all vehicles. The fuse link is used to prevent damage to the wiring harness and generator if the wiring harness should become grounded, or if a booster battery with the wrong polarity is connected to the charging system. Mitsubishi 215-Ampere Generator
The Mitsubishi 215-ampere generator is an internally regulated, brushless unit that is self-current limiting and temperature compensating. The regulator is integral with the generator and the fan is external.

VISUAL INSPECTION CHART Mechanical Electrical
  • Before attempting to test a battery, it is important to give it a thorough examination to determine if it has been damaged.
  • Batteries are tested to determine the state of charge and ability to crank an engine. The result of these tests is to show that the battery is either good, needs recharging, or must be replaced.
  • Preliminary checks to the charging system should be made regardless of the fault condition. These checks include:
    • Check the fuses/fuse links to the generator to ensure that they are not burned or damaged. This condition, resulting in an open circuit or high resistance, can cause erratic or intermittent charging system concerns.
    • Check battery posts and cable terminals for clean and tight connections. Clean the posts and the cables to ensure good electrical contact.
    • Check for secure connections at the generator output, voltage regulator and engine ground. Also check the connection at the power distribution point.
    • Check the generator drive belt to ensure proper tension and no slip between the generator pulley and the drive belt. Refer to Section 03-05 in the Powertrain, Drivetrain Manual.
    • Check battery for full charge.
  • Before performing charging system tests on the vehicle, note conditions such as: slow cranking, discharged battery, charge indicator lamp stays on with engine running, charge indicator lamp does not illuminate with ignition switch in RUN and engine not running, etc. This information will aid in isolating the part of the system causing the symptom.
  • When a relatively new battery is discharged, test for current drain. The following are some of the most common current drain concerns:
    • Glove compartment lamp stays on with the door closed.
    • Engine compartment lamp stays on constantly.
    • License plate lamp or interior lamp stays on constantly.
    • Other electronic component concerns.

Aug 14, 2009 | 2005 Ford F 350 Super Duty

1 Answer

93 Ford F250 5.8 L No Charge


not cpu.
Do not field out the field wire.
Is the alternator ight coming on?
If you rev engine, does charging system start working?
There is a resister wire that provides voltage to the field circuit. If the resister is bad, you will only get voltage to the field through the dash alt. light bulb when you push enough voltage through it.

I don''t have 1993, but here is 96:

Generator with Integral Rear Mount Regulator, Internal Fan Type With the key in the RUN position, voltage is applied through the charge indicator lamp I circuit to the voltage regulator. This turns the voltage regulator on, allowing current to flow from the battery sense A circuit to the generator field coil. When the engine (6007) is started, the generator (GEN) (10346) begins to generate alternating (AC) current which is converted to direct (DC) current by the rectifier internal to the generator. This current is then supplied to the vehicle's electrical system through the battery positive voltage (B+) terminal located on the rear of the generator. Once the generator begins generating current, a voltage signal is taken from the stator and fed back to the voltage regulator S circuit, turning off the charge indicator/lamp. With the system functioning normally, the generator output current is determined by the voltage at the A circuit. This voltage is compared to a set voltage internal to the voltage regulator, and the voltage regulator controls the generator field current to maintain proper generator output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge. With the system functioning normally, the generator output current is determined by the voltage of the A circuit (battery sense voltage). The A circuit voltage is compared to a set voltage internal to the voltage regulator, which controls the generator field current to maintain proper output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge in the winter and reducing the chance of overcharging the battery in the summer. A fuse link is included in the charging system wiring on all models. The fuse link is used to prevent damage to the wiring harness and generator if the wiring harness should become grounded, or if a booster battery with the wrong polarity is connected to the charging system.
-------------------------------------------------------------------------

13ca225.gif
  • System Does Not Charge
  • Loose or worn drive belt.
  • Open/voltage drop in Circuit 38 (BK/O).
  • Open/voltage drop in Circuit 36 (Y/W).
  • Open/high resistance in Circuit 904 (LG/R).
  • Damaged regulator.
  • Damaged generator battery


Apr 13, 2009 | 1995 Pontiac Sunfire

1 Answer

Brake and charge light on


sounds like you bought a bad alternator

Nov 23, 2008 | 1997 Ford F150 Regular Cab

1 Answer

1989 Toyota pickup with short/dead battery


The brake light combined with the battery light tells me that your alternator is not sufficiently charging the battery. These 2 lights illuminate in tandem when the voltage regulator is not seeing over 12.5 volts. You are going to probably have to replace the alternator, or get it checked & overhauled at an alternator shop.

Nov 03, 2008 | 1989 Toyota Pickup SR5

1 Answer

Warning lights stay on


Hi,

Brake light warning indicates possible low brake fluid in the reservoir;

Charge warning light indicates battery not charging which can be caused by defective alternator/regulator, slipping belt, corroded fusible link from alternator to battery B+ terminal.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 24, 2008 | 1988 Toyota Pickup

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7754 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...