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1990 Toyota Corolla blinkers

Tiny
BRAAFLAT
  • MEMBER
  • 1990 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 148,000 MILES
I bought the car and the blinkers worked. I hooked up a stereo system and accidently made an ark when re-connecting the battery and now the blinkers dont work, and neither do the hazards. I checked the fuses and I tryed replacing the actual blinker itself on the steering column.
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Tuesday, July 29th, 2008 AT 8:04 PM

19 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi braaflat,

Did you check the turn signal relay? When installing the stereo, did you reconnect the hazard switch?
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Friday, August 8th, 2008 AT 10:30 AM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
Thanks for replying to my post. You were right about the hazards not being hooked up, so I hooked those up, and I checked the relay. Everything is good now, but the turnsignals still dont work. Any more suggestions?
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Friday, August 8th, 2008 AT 8:16 PM
Tiny
KHLOW2008
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Hi braaflat,

Check for a blown Turn signal fuse in underdash fuse box.
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Saturday, August 9th, 2008 AT 5:49 AM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
Hi, I checked the fuses, and there good too. I dont think I could have any open wires, I used a wire harness when hooking up the stereo.
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Saturday, August 9th, 2008 AT 10:37 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Are the hazard lights working?
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Saturday, August 9th, 2008 AT 10:47 AM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
No, nothing works
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Saturday, August 9th, 2008 AT 11:57 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Check the hazard/turn signal relay and its power supply and ground.
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Saturday, August 9th, 2008 AT 3:35 PM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
So there is a separate relay for the turnsignals and the hazards? When this problem first occurred, I replaced the relay for the hazards. Its still good because it clicks open when I press the hazards switch. If there are separate relays, where is the relay for the turnsignals?
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Saturday, August 9th, 2008 AT 8:55 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi braaflat,

No, they both share the same relay.

Lets start all over again.

With hazard switch turned on, does relay have clicking noise as if it is working? Or it clicks just once and then no more noise?
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Sunday, August 10th, 2008 AT 2:51 AM
Tiny
BRAAFLAT
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When I push the hazards switch, the relay clicks once.
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Sunday, August 10th, 2008 AT 7:17 AM
Tiny
KHLOW2008
  • MECHANIC
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Did you test the relay? Replaced with a known good one?

Are the dash turn indicators showing when hazard switch is activated?
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Sunday, August 10th, 2008 AT 10:17 AM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
Im not sure how you test relays. I bought this relay new. The turn signals dont light up.
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Sunday, August 10th, 2008 AT 12:31 PM
Tiny
KHLOW2008
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Are the horns working? If not check the # 3 (15A) fuse in under hood fusebox.
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Monday, August 11th, 2008 AT 8:20 AM
Tiny
BRAAFLAT
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Yes the horns work.
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Monday, August 11th, 2008 AT 3:52 PM
Tiny
KHLOW2008
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It is not easy to describe the procedure for testing the circuit and I am unable to find any suitable wiring diagram.

Did you get the correct replacement part?
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Tuesday, August 12th, 2008 AT 9:16 AM
Tiny
BRAAFLAT
  • MEMBER
  • 10 POSTS
Should be the right relay. The people at the parts store got it for me. Is the relay supposed to only click one time when I press the hazards? The relay doesnt make any noise when I activate turnsignals.
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Tuesday, August 12th, 2008 AT 11:27 AM
Tiny
KHLOW2008
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The relay is supposed to click at a regular interval when the switch is activated. Same when turn signal is activated.
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Tuesday, August 12th, 2008 AT 11:30 AM
Tiny
BRAAFLAT
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Just clicks once.
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Tuesday, August 12th, 2008 AT 11:01 PM
Tiny
KHLOW2008
  • MECHANIC
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Hi braaflat,

Either the ground circuit is broken or the relay is faulty.

I suggest you check the relay again and if it does not help, you need to get the assistance of an auto electrician.
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Wednesday, August 13th, 2008 AT 7:44 AM

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