Question about Toyota Supra

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Thank you for your quick answer to my alternater problem. But I was kinda hoping to find out what each of the three wires on the multi pin connecter went to. Ya see one place that tested my alternator only connected the case ground, positive battery post, and only one of the pins from the multi pin output. And it tested fine. two other places connected all three and it failed. I was wondering if i could bypass the other to pins and still use it? Once again this is for a 84 celica supra. 2.8Lt, 6cyc. Thanks

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Three wires 'normal' alternator uses:

  • a battery wire
  • ignition/warning light wire
  • voltage sensing wire: voltage sensing is used when you want the alternator to read voltage at some other point than the battery
Depending on your alterantor, you can also have 'self exciting' alternators that only requires two wires (battery and ignition) or even one wire (battery).

You really need to know what you are doing to install a subsitute alternator with different wiring or risk 'frying' your car electrical!

Posted on Oct 01, 2010

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1998nissan sendra doesn't charge but the battery light goes off when i start the engine when I remove bartery terminal engine stop running


A 98 still has a computer so with out power it will die my guess is corroded wires first use a multi meter and check for voltage on the terminal on the alternater it should show 13 to 14.5 volts D/C then check the battery see if it has 13 to 14 volts if yes it is charging if the altenater show 13 to 14 it is charging if the voltage is 11 to 12 or lower it is just reading the battery and you need a alternater if the aliternater is good and the battery is not charging it is either the power wire or ground you can use jumper cables to check jump from the post on the alternater to positive battery by its self if this fixes it it is the power wire if not unhook the positive and then connect the ground thermal to the engine block and see if that fixes it if not do both you will see the problem good luck

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Istalled another alternater yet my battery is still going flat.


change or charge the battery and make sure you install the correct alternator capable of supplying the correct amps your car needs otherwise it wont charge correctly/ check your electrical wiring it must be grounded somewhere or the connection is incorrect thats why ur battery drains...

Apr 06, 2010 | 1995 Toyota Pickup

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Bolts and Nuts from the alternator? not 100% sure of the question.

Mounting Bolts to the engine, there are 2...

electical connections, there is 1 for the charging circuit (bigger wires) that have a nut to hold them on, and 1 connector for the voltage regulator.

Hope that answers your question.....

Peace,

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4wd light on dash not working, changed switch on shift, bulb in dash and 4x4 computer control behind centre console. Also changed both switches in front axle but still no 4wd. Why?


Dear Fixya,

Solution at hand. I chased the harness to the gearbox. I methodically electrically earth tested each wire-to-switch and visually checked each wire for breaks whilst another kept turning on and off the 4wd switcth on shift. Eventually, at the rear end of the gearbox there is a multi connector of some several wires. One end had a female and the other exposed male pins. On counting the pins I noticed that one pin, on recollection green/red wire had been drawn back into the connector so not making a contact. I therefore, pushed the pin back through so to make a connection. All of the 4wd pneumatics, light on dash and front axles switches now work. That one wire caused total shutdown of the High 4wd system. I assume that during either off-roading or average road use an object, like a branch, fouled the rear connector and dislodged the wire connection.

Thanks for your quick response. Hope the above will help someone in the future.

Kindest regards,

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Where can i find a fuselink that is between the starter selenoid and the alternater


If you are speaking of a fusible link it will be a section of the wire with two bulges in it about 3 inches apart with shrink tubing around it and will probably be a different color that the rest of the wire. You my have to remove the heat shielding mesh on the wiring harness to locate it. If the problem is your fusible link, you can eliminate the other wires by checking the continuity from one end to the other with a multi-meter or test light. Please rate me if this helps. Thank you for allowing me to serve you on Fixya.

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1987 Suzuki Samurai alternator wiring. No original wire harness


yes the b goes to the battery.

http://bbs.zuwharrie.com

heres the site for you.. we have all the answers.

http://www.acksfaq.com/diagram_color_86-88_sam.htm

i drew this up a while back. it could help you out alot.

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1 Answer

Alternater replacement


TO remove :

  1. With the ignition OFF, disconnect the negative battery cable.
  2. Remove the power steering pump. Refer to for the complete procedure.
  3. Remove the cruise control actuator but do not disconnect the actuator cable; simply move the unit out of the way with the cable attached.
  4. Unplug the multi-pin electrical connector.
  5. Remove the terminal nut and remove the wire from the terminal.
  6. Loosen the adjusting bolt; remove the alternator nut.
  7. Remove the belt from the alternator pulley.
  8. Remove the adjusting bolt, the lower through-bolt and the small support stay.
  9. Support the alternator. Remove the upper through-bolt and remove the alternator.
  10. If desired, remove the alternator mounting brackets.
  11. If the alternator brackets were removed, reinstall them. Coat the bolts with a thread sealer or liquid thread lock. Install the bracket bolts and tighten them to 36 ft. lbs. (50 Nm).
  12. Fit the alternator into place. Install the upper through-bolt and tighten it to 33 ft. lbs. (45 Nm).
  13. Install the small stay, the lower through-bolt and the adjusting bolt. Make certain the adjusting bolt is properly installed.
  14. Install the belt. Install the alternator nut. Adjust the belt tension. Tighten the alternator nut to 19 ft. lbs. (26 Nm).
  15. Connect the wire to the terminal and tighten the nut.
  16. Engage the multi-pin connector to the alternator.
  17. Install the cruise control actuator.
  18. Install the power steering pump.
  19. Connect the negative battery cable.15463b8.jpg

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2 Answers

Fuse box


Wiring relays and connections – all modelsRelays (typical)

1 Vacant
2 Intake manifold preheating relay (carburettor models) or fuel
pump relay (injection models)
3 Seat belt warning system relay
4 Gearshift indicator control unit
5 Air conditioner relay
6 Dual tone horn relay
7 Relay for foglights and rear foglight
8 Relief relay for X contact
10 Intermittent wash/wipe relay
11 Rear window wiper relay
12 Turn signal flasher or trailer towing warning relay
13 Seat belt warning system (interlock) or rear window, driving
lights and oil pressure warning relay
14 Window lift or seat belt warning system relay
15 Headlight washer relay
16 Control unit for idling speed increase
17 Fuse for rear foglight
18 Control unit for coolant shortage indicator
19 Thermo fuse for window lifters
20 Switch unit for heated driver’s seat
21 Switch unit for heated passenger’s seat
22 Switch unit for overrun cut-off
23 Vacant
24 Vacant
Relays are symbolised as a number in a black box
Not all relays are fitted to all models
Connections
A Multi-pin connector (blue) for dash panel loom
B Multi-pin connector (red) for dash panel loom
C Multi-pin connector (yellow) for engine compartment loom left
D Multi-pin connector (white) for engine compartment loom right
E Multi-pin connector (black) for rear wiring loom
G Single connector
H Multi-pin connector (brown) for air conditioner or wiring loom
K Multi-pin connector (transparent) for seat belt warning system
loom
L Multi-pin connector (black) for lighting switch terminal 56 and
dip and flasher switch terminal 56b (carburettor models) or
multi-pin connector (grey) for dual tone horn (injection models)
M Multi-pin connector (black) for lighting switch terminal 56 and
dip and flasher switch terminal 56b (injection models)
N Single connector for separate fuse (manifold heater element)
P Single connector (terminal 30)
R Not in use
Fuse colours
Blue 5A
Green 30A
Red 10A
Yellow 20A

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