Interior Dash flashing after installing lights?

[SS308]

Gen 1

Installed a roof curved light bar and wired into the OEM switch (did not install a relay). Works great, except dash intermittently flashs. Bar works great and truck runs fine. Just the dash issue.

Any ideas?

Many thanks in advance for any advice.

 

[CoronaRaptor]

What's the amp draw? How old is your battery? Is it worse when you're headlights, wipers, fan is on? Sounds like you tapped into the wrong wires, possibly?

 

[SS308]

What's the amp draw? How old is your battery? Is it worse when you're headlights, wipers, fan is on? Sounds like you tapped into the wrong wires, possibly?

It sat for 2 weeks and I did have to jump the battery.

Would a bad battery cause that?



Thanks for the reply!

 

[CoronaRaptor]

It sat for 2 weeks and I did have to jump the battery.

Would a bad battery cause that?



Thanks for the reply!

Sitting for only 2 weeks? If you didn't leave anything on, I would say your battery is weak or its not charging properly. Maybe you have a weak alternator or bad cables/connectors at the battery.

 

[SS308]

Well, after disconnecting lights and checking for shorts (with no results), decided to disconnect the Pedal Commander. Guess what, it was the Pedal Commander.

Checked everything, all ok. Plug the Pedal Commander back in and everything goes bonkers again. I've had it for over a year with no issues. Weird.

Thanks for all your suggestions, it definitely got me thinking. I am going to replace the battery.