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Toyota Camry Fuse and Electrical Questions

871 messages,  Last post on Nov 24, 2009 at 7:28 PM

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What is this discussion about? Toyota Camry, Electrical, Sedan


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#501 of 871
Re: Head/Taillights for CAmry 1997 [sid007] by kiawah
Mar 11, 2009 (7:46 am)
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Replying to: sid007 (Mar 11, 2009 7:23 am)

Okay, we're going to have to get further into the downstream headlight circuitry. Do you have daytime running lights on your vehicle model, or not? There are two different circuits.
 
That additional info you provided above will help zero in on the problem.
#502 of 871
Re: 1990 Camry Power Windows\Locks NOT WORKING [kiawah] by comfixr
Mar 11, 2009 (11:03 am)
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Replying to: kiawah (Oct 03, 2007 10:41 am)

Im having the same problem with the power windows. I was wondering if you could send me the pics because I dont see the power cb by the flasher. Theres a couple of silver relay switches but no power cb.
  My email is comfixryahoo.com im not sure if I have an email on Edmunds. I just signed up so not sure.
#503 of 871
Re: 1990 Camry Power Windows\Locks NOT WORKING [comfixr] by kiawah
Mar 11, 2009 (11:17 am)
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Replying to: comfixr (Mar 11, 2009 11:03 am)

Is your vehicle a 1990?
 
Did you take the left kick panel off? Put your left foot on the floor, move it sideways to the left until you hit the kick panel, take that panel off.
#504 of 871
Re: Head/Taillights for CAmry 1997 [kiawah] by sid007
Mar 11, 2009 (12:03 pm)
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Replying to: kiawah (Mar 11, 2009 7:46 am)

By day time running lights if you mean automatic lights that senses the external lights. Then 'No'. Mine is an 'LE' 1997 Camry (4 cylinder).
#505 of 871
Re: Head/Taillights for CAmry 1997 [sid007] by kiawah
Mar 11, 2009 (12:52 pm)
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Replying to: sid007 (Mar 11, 2009 12:03 pm)

No, that's not what I mean.
 
DRL or Daytime Running Lights, are headlights that are on during daylight hours. They come on, when the engine is on. You see many cars on the road with them. Some 97 Camry's have DRL's, others don't.
 
In the case of a Camry, they are actually the high beam bulb, wired in series, which runs at half voltage. They achieve this with a bunch of relays, to switch the high beams between running in DRL mode at half voltage, and regular High Beam mode when they operate at full voltage.
 
Do you normally have headlights on during the day, which you didn't turn on?
#506 of 871
Re: Head/Taillights for CAmry 1997 [kiawah] by sid007
Mar 12, 2009 (2:31 am)
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Replying to: kiawah (Mar 11, 2009 12:52 pm)

OK I get it. I do not have the DRL.I have to turn on my switch to get the lights everytime.
#507 of 871
Re: Head/Taillights for CAmry 1997 [sid007] by kiawah
Mar 12, 2009 (5:14 am)
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Replying to: sid007 (Mar 12, 2009 2:31 am)

Okay...lets try to figure out exactly where the problem is now.
 
Gen 4 Headlight no/DRL
 
You have determined that you have power to the relay socket, and you believe the relay itself is good. So the problem is either in the integration relay (the circuitry that controls the relay), or the headlight switch. The headlight switch has two circuits in it.
 
Let's verify that one piece of the switch is working correctly, and is able to switch between low and high beams. Since you know how to take out the headlight relay, and put in some jumper wire, let's do exactly that and effectively hotwire power to the headlights. Pull out the headlight relay, and jumper the socket (where the relay plugs in), from pin 1 to pin 2. This will then provide power the the two headlight fuses, as well as the headlight bulbs. Putting the switch in the low position, should have the low beams on (by completing the circuit to ground), putting the switch in the high position should have the high beams on (by completing that circuit to ground), and flashing will flash the high beams. If you don't get this, replace the switch. Unplug your jumper wire.
 
Assuming the above is okay, then you'll want to check the top half of the switch. You'll need to get into the wiring of the switch, and you want to put a meter on pins 13 and 18. When you turn on the headlight switch, you should see zero resistance between pins 13 and 18. Turn the switch off, and it should go to infinite resistance. If you don't get this, replace the switch.
 
If the above checks out, then either your integration relay is bad, or your headlight relay really is bad even though you think it is good. See the following for info on the integration circuitry.
 
Gen 4 Integration Relay
 
If you get to the integration relay area, make sure that all of the power fuses that feed into the integration relay are good. The integration relay itself, is physically on the 'front side' of the junction box by your left knee. For instance, the 'gauge' fuse is on the back side (facing the passenger compartment, the integration relay would be on the front side, access up under the dash.
 
Gen4 Integ Relay Power
 
Good Luck !
#508 of 871
Re: Head/Taillights for CAmry 1997 [kiawah] by sid007
Mar 12, 2009 (5:48 pm)
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Replying to: kiawah (Mar 12, 2009 5:14 am)

Amazing ! I tried the steps with the switch and everything worked perfectly. Also when I turn the engine off(relay connected) and just pull the switch towards me I can hear the relay clicking and the high beam lights up. So I guess the relay is also o.k. I think with the chattering noise and the door locks and tail lights not working the integration relay could be the culprit(when I turn pull the lamp switch for high beam the seat belt light also glows !! ..i didn't think they could are connected unless the integration relay acts like an onboard computer!!).Problem is how do I get to it. Is there a way I can dismount the relay from behind the dash board.Is it the white box that has wires from the lamp switch connect to(red/black and green) ? There is also a huge connector with about 15 wires connected to it behind the dash.It is such a difficult area to do the trouble shooting.If I could easily gain access to it ,it would make things much more easier.
#510 of 871
Re: Head/Taillights for CAmry 1997 [sid007] by kiawah
Mar 12, 2009 (6:56 pm)
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Replying to: sid007 (Mar 12, 2009 5:48 pm)

Great job.......
 
I'd verify that the 10A Gauge, and 7.5A Dome fuses were also okay, before pulling the trigger on the integration relay. Since you know now how to check out a relay, verify that the taillight relay is also working. You need voltage flowing thru the primary coil of the taillight relay to feed current to the integration relay. I guess to be complete, you should also check that the driver side door courtesy switch is working as well. You may also try unplugging and reseating the connectors.

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