Stop Lamp Problems

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Rboblis
Posts: 3
Joined: Mon Jan 14, 2008 9:06 am
Car: 1990 Q45

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I have read the post here about the stop lamp sensor going out. Seems to be the problem I am having. Brake lights do not work, just the spoiler light. Replaced the pedal switch. No change. Where is the sensor? Under the carpet in the trunk?? Also, I noticed this because the button on the gear shift will no longer depress. have to hit the 'release' button to push the top button in. Am I assuming correct that it is tied in with the switch for the brake lights?Thanks


maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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Think the relevant post is in IOM, where this post probably should be.

The control box is on the rear bulkhead if I rember correctly, passenger side.

We are assuming that bulbs, wiring and sockets are up to OEM specification.

Rboblis
Posts: 3
Joined: Mon Jan 14, 2008 9:06 am
Car: 1990 Q45

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I apologize. New to the forum. How do I navigate to IOM?

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Raxephon
Posts: 1910
Joined: Tue Jul 27, 2004 8:53 am
Car: '04 RX8...for the moment...

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Rboblis wrote:I apologize. New to the forum. How do I navigate to IOM?
IOM = Infiniti Online Mechanic

zeroforum/24

The sending unit is right next to the trunk latch striker, under the carpeted panel.


Modified by anlasak at 3:31 PM 1/14/2008

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goody90q45
Posts: 3679
Joined: Wed Aug 17, 2005 2:07 pm
Car: 1992 Infiniti Q45 (sold)
Location: Orangevale, CA

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Rboblis wrote:I have read the post here about the stop lamp sensor going out. Seems to be the problem I am having. Brake lights do not work, just the spoiler light.......
All the brake lights, including the spoiler light, are on the same electrical harness and fuse. If the spoiler gets a signal then the brake lights are also, unless a gremlin has chewed through some wiring. Pull out the brake lamp modules by squeezing the tabs and examine the bulbs, sockets and wiring for evidence of melting or burning. It's also easy to check the circuit with the module removed using a voltmeter and a helper to depress the brake pedal.
Rboblis wrote:I have read the post here about the stop lamp sensor going out.....Also, I noticed this because the button on the gear shift will no longer depress. have to hit the 'release' button to push the top button in. Am I assuming correct that it is tied in with the switch for the brake lights?
The brake lamp sensor, losated below the trunk lock, does not control the shifter or the brake light function. It only notifies you that there is a problem in the circuit. I haven't had your problem so I can only comment on what I've read but the switch you replaced under the brake pedal and loose shift linkage are possible culprits but I don't think it's related to the non-operative bulbs.


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