Odd Left Blinker Problem

Ok

When I turn on my left blinker; lights behind odometer,radio and clock all blink with left blinker.I have a remote start installed after factory.My vehicle also has starting problems with auto start and with key start(intermittent problem,sometimes starts with auto and sometimes starts with key).I am not sure these are related.I have had brake light switch looked at,could this be the problem.

 

Grounding problem.

 

Did you just replace the bulb? Bought a car where someone forced a single filament but into a double filament socket and had simular issues.

 

Yep I have seen those that have even managed to get the proper bulb in backwards! Generally if you have lights doing strange things there is a ground missing somewhere. What happens instead of the light going to ground to complete the circuit it grounds thru the filaments in the related bulbs (like the dash lights). There is enough resistance in the bulbs to ground that they will light I would check left signal sockets first for damage beyond that it could be anywhere something as simple as a loose bolt on a ground wire. I have no ideal how you alarm system works or why it would have any connection to the lights but it’s possible they flash the lights when the alarm sounds if that is the case that is most likely where your problem is. Stock wiring usually never goes bad unless it has been tinkered.

 

I'd first go each of the signals, inspect the socket and then check (ohm meter) bulb socket (AT the bulb socket pins) to ground. If reading are weird - compare to the other side. Should be near 0 ohms to frame ground.

 

I would check the install of the autostart if you can. Sounds like a ground is missing/corroded.

 

I'd check my suggestion above first. (quick check). Then I'd disconnect the aftermarket addition just to check. The reason is I can't see how the aftermarket will affect just the left side blinker/stop lights. The Turn signals will come from the ECU and then perhaps to a relay - but none of that should have been altered with your aftermarket add. If the problem was on Both sides I'd think different.

Also, Double check that the bulbs are correct/watt and are the same as the other side. If that side is puling more amps it could cause a voltage drop in the circuit and behave differently than the other side.