Automotive electric question

[Formerjeeper]

This is lighting and electrical but on a vehicle so let me know if I’m posting in the wrong place.

hoping for a little wisdom/experience, this is minor enough that it’s silly to take to a mechanic but it has me stumped.

On our 2008 Honda odyssey, the passenger front turn signal is not working and the dash indicator and passenger rear turn signal flash fast when I move the turn signal stalk up for a right turn.

I have tried multiple replacement bulbs and also replaced the socket with a genuine Honda part. Not sure what is next if it’s not one of those two. I’m assuming the switch is fine since it activates the rear and dash indicator but not the front. Is this a safe assumption?

Start tracing wires from the socket, or any other suggestions?

thanks in advance.

 

[WordMan]

I'd start by checking for power and ground at the socket.

 

[Neggy]

and then work back into the harness to the next connector

Do out 4 way flashers work flashing that bulb?

Normally 4 way flashers light up all the turn signal or brake lights depending on the manufacturer.

If you are getting power when the 4 ways are on, and not when the signal is on, you need to get a wiring diagram and start tracing it back

 

[wssix99]

^ This is a great thing to do. Test the hazard flashers also. If the bulb doesn't flash in hazard mode, then that indicates a wiring or socket issue more strongly. (Typically, the hazard switch, flasher, and other electronics are a separate circuit and only have the pigtail to the socket in common.)

Given the behavior of your rear signal (fast flashing), your core wiring and flasher are likely good. (This is how a thermal flasher circuit behaves when one bulb isn't on the load.)

I know you have changed the bulbs, but many people have had "new" bulbs be bad out of the package. I'd try putting one of your new bulbs on your good side and brining a known good bulb back over to test the socket.

If the hazards don't work, then I would start tracing the wires. It's not unheard of that you could have a problem with the turn signal switch in the column, but this is rare. There should be a connector at the base of the steering column where you can probe the wiring to see what kind of power the switch is sending.

 

[kd3pc]

the fast flash is an indicator of a damaged bulb/socket in the chain, and that often includes the emergency/4way flashers. Wiring diagram and bug light will help immensely. Good visual to make sure a rodent has not dined on things.

 

[Billy Jack]

Are there any other lights on the same circuit? I had a similar problem with my El Camino and after diagnosis, wound up replacing the standard flasher with an electronic timed one, 'cause I couldn't find anything wrong. Months later, while doing an overall light check for PA State Inspection, I had a "DUH" moment when I realized the side marker light on that same side had a bad bulb. Replaced that stupid little bulb and all was good again.

Bill

 

[Showkey]

Agree on Power and ground checks.
Bad ground would be a good start. That is a shared ground bolt multiple with wires to the ground

 

[Uofime]

Test the power and ground at the socket ideally with an incandescent test light. Follow the issue through the appropriate above junctions until you find the cause.

 

[tyme2par4]

Did you check the fuse?