Brake lights issue

General Chat about the Mk1 QashQai
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tompip
Posts: 1
Joined: Sun Jan 20, 2019 5:26 pm
Qashqai Model: Mk.1 Qashqai - J10 (2006–2013)

Post by tompip »

Hi, my brake lights work when I do not have my tail lights on. However when I turn on my tail lights and press the brake pedal, my brake lights do not come on

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gloucester
Posts: 5173
Joined: Sun Apr 03, 2016 7:04 am
Location: Gloucestershire, England
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by gloucester »

I found this on another forum:

"Almost certainly, the earth return from your rear lights is faulty; so the curent is going to earth through the tail light circuit. When you put power in to that circuit, the current being applied to the brake lights has no where to go. If you have a separate earth return line from each light unit check if they are connected back to the earth terminal on the battery. This will probably be the negative terminal. If you don’t have separate earth returns then the current is intended to go back to earth via the bodywork; so look for corrosion between the light units and the bodywork."

Sounds a possibility...
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07 ~ (2024 Volvo EX30 ordered)
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