How to take out brake light switch?

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Chunky Chef
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So my rear brake lights don't turn on when I press the break pedal but I know the lights themselves work. But how do I take out the Brake light switch?

Also what does the switch next to the brake light switch do?
Would I have to replace that one also to make the rear brake lights work when needed? :confused:


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Towncivilian
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The switch next to the brake light switch is the cruise cancel switch. If it's operating normally, there's no need to change it.

See page BR-14 of the FSM for an exploded parts diagram of the brake pedal. I guess there's a bolt head inside the square switch portion? I don't know, I've never replaced the brake switch.

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Chunky Chef
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I cant see the link you posted but thanks and I got the switch out. Can you tell me the part number for it? I called auto zone and they said they had the part and by the time I got home and compared it to the one from the car, I realized they gave me the wrong part :facepalm: So this time I want to be a bit more specific......

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Towncivilian
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AutoZone doesn't seem to have a direct-fit replacement. Buy this part from your local dealer instead.

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Chunky Chef
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Sorry for the late response but I figured out my problem. I acidently took out the switch for the cruise control which is right next to the break light switch. So that was why I couldn't find the right part. But the break light switch was still broken. I ended up going to the dealership and buying a switch for around $15

wisehunter1
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Car: 2002 Infiniti QX4

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My brake lights work fine but when in auto mode at night, my headlights turn on but my taillights do not. When I set my lights on manual on mode, my tailights work fine. Could this be related in any way?

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Chunky Chef
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Not sure. When I went to the dealership the mechanic said that 9/10 times when the brake light dont turn on when you press the breaks, it is most likely the switch. So try changing switch to see if that helps.

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Towncivilian
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wisehunter1 wrote:My brake lights work fine but when in auto mode at night, my headlights turn on but my taillights do not. When I set my lights on manual on mode, my tailights work fine. Could this be related in any way?
See EL-46 of the FSM - "When outside is dark, headlamp turns on but tail lamp does not turn on by auto light operation." Looks like you'll have a fun time sticking your head in the driver footwell measuring voltages.

CecilBDemento
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Joined: Wed Aug 02, 2017 10:43 pm
Car: 1999 Infiniti Qz4

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The brake light switches rubber grommet disinterested after 18 years and 280k miles on my Qx4, I found the pieces in the steeringcolumn bracket. . The whole idea is to keep the"button" depressed. A bottle cap sufficed, and chewing gum kept in place.

CecilBDemento
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Joined: Wed Aug 02, 2017 10:43 pm
Car: 1999 Infiniti Qz4

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Brake lights were staying on. Google research implicated brake light switch. However, it's endemic with this model for The rubber grommet to disintegrate, I soon learned. The brake light switches rubber grommet disintegrated after 18 years and 280k miles on my1999 Qx4....I found the pieces in the steering column bracket. . The whole idea is to engage the bnrake light switch "button" when depressed. A bottle cap sufficed, and chewing gum kept in place. An easy fix for a tight working space.


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