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Hazard light not functioning?

Tiny
BLESSING EWOBOR
  • MEMBER
  • 2006 TOYOTA HIGHLANDER HYBRID
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 204,567 MILES
Hello, the vehicle hazard light is not functioning when the button has been pressed but both the left and right turn signal lights are functioning. What could be the cause?
Could I get I wire diagram for this?

Thank you very much.
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Monday, September 4th, 2023 AT 12:05 PM

13 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Hi,

I'm not sure if this is a hybrid or not. I went with a non-hybrid.

There is a fuse specific to the hazard lights. It's fuse 15 in the under-hood fuse box. However, I believe that is for the signals as well. If they are working, I suspect it will be good.

I attached the wiring schematic for you below. As always, I cut it in half but overlapped it so you can follow from one to the next.

Let me know if this helps.

Take care,

Joe

See pics below.
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Monday, September 4th, 2023 AT 10:04 PM
Tiny
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Thank you very much sir.
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Tuesday, September 5th, 2023 AT 4:04 AM
Tiny
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The hazard fuse is okay, I wanted to test the hazard switch but when I removed it. It was assembly. I don't know how to test it and there are two red wires on the connectors, if I have to use the wire diagram.
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Tuesday, September 5th, 2023 AT 9:48 AM
Tiny
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Hi,

I see that. I do see two reds going into the center JB in the schematic. Do me a favor. Take a look at the diagnostics for the hazard lights circuit below. One is for a vehicle with navigation and the other is for one without.

Let me know if you are able to test from that information.

Take care,

joe

See pics below.
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Tuesday, September 5th, 2023 AT 6:11 PM
Tiny
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Thank you very much for the information.
From the picture that I sent, it seems that the vehicle that I am working on is without navigation, if I am right?
Then from the guide, does it mean that if the switch is bad, the A/C assembly will be replaced, or can the hazard switch be replaced alone?
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Tuesday, September 5th, 2023 AT 8:37 PM
Tiny
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Hi,

You should be able to replace only the switch. It has been a while since I've seen one of these, but the switch should be separate.

Joe
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Wednesday, September 6th, 2023 AT 4:52 PM
Tiny
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Good morning,
Thank you very much.
From the A10 has two connectors. Which of the connectors, will be tested for?
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Wednesday, September 6th, 2023 AT 8:13 PM
Tiny
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Hi,

With the switch off and on, you are checking resistance as indicated in pic 2 above. Is that what you needed?

Let me know.

Joe
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Thursday, September 7th, 2023 AT 1:26 PM
Tiny
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Good morning, sir,
That is not what I needed.
I mean two different connectors entered the A/C assembly. Which of the two shall we test for?
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Thursday, September 7th, 2023 AT 8:00 PM
Tiny
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Hi,

See pics below. When determining pins, turn the connector in the same direction as indicated in the pic.

Let me know if that is what is needed.

Take care,

joe

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Friday, September 8th, 2023 AT 5:58 PM
Tiny
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Good evening.
Please could I have the location of the turn signal flash assembly?
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Tuesday, September 19th, 2023 AT 12:12 PM
Tiny
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Hi,

The signal flasher is under the dash on the left side next to the IP junction box. See pics 1 and 2 below. Pic 3 provides the part number and what it looks like.

Let me know if this helps.

Joe

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Tuesday, September 19th, 2023 AT 9:06 PM
Tiny
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Thank you very much.
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Wednesday, September 20th, 2023 AT 11:13 AM

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