Flash To Pass?
Thread Starter
Instructor
Joined: Mar 2017
Posts: 239
Likes: 30
From: Columbus, GA
Flash To Pass?
Hey guys when I pull on the stalk to flash my hi-beams to let people know I want them to go they don’t work. All of my lights work including my hi-beams but when I pull back to use my hi-beams momentarily nothing happens but when I push it forward they do come on and stay on.. any ideas?
EDIT: Pulling on the stalk does nothing in all modes so when I have my lights off, when they’re on low-beam, hi-beam, and when the fog lights are on.
EDIT: Pulling on the stalk does nothing in all modes so when I have my lights off, when they’re on low-beam, hi-beam, and when the fog lights are on.
Last edited by All Stock Ls2; Feb 17, 2018 at 08:51 PM.
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Hey guys when I pull on the stalk to flash my hi-beams to let people know I want them to go they don’t work. All of my lights work including my hi-beams but when I pull back to use my hi-beams momentarily nothing happens but when I push it forward they do come on and stay on.. any ideas?
EDIT: Pulling on the stalk does nothing in all modes so when I have my lights off, when they’re on low-beam, hi-beam, and when the fog lights are on.
EDIT: Pulling on the stalk does nothing in all modes so when I have my lights off, when they’re on low-beam, hi-beam, and when the fog lights are on.
You can fix it, but people still aren't going to pull over.
Thread Starter
Instructor
Joined: Mar 2017
Posts: 239
Likes: 30
From: Columbus, GA
It sounds like no signal is making it from the stalk to the BCM. If you have a Tech 2 you could confirm whether this is the case. It might be a loose connection, but my first guess would be the stalk assembly itself. They are known to fail in other ways (usually signal actuation causing flash-to-pass).
You can fix it, but people still aren't going to pull over.
You can fix it, but people still aren't going to pull over.
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
It's the name of GM's previous factory scan tool. Now they use a different one.
Real Tech 2s cost thousands (if you could even find one). Everyone buys Chinese clones instead which look identical and run the same software. They cost around $250 shipped.
Real Tech 2s cost thousands (if you could even find one). Everyone buys Chinese clones instead which look identical and run the same software. They cost around $250 shipped.
Thread Starter
Instructor
Joined: Mar 2017
Posts: 239
Likes: 30
From: Columbus, GA
Recon a GM dealership would have one?
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Thread Starter
Instructor
Joined: Mar 2017
Posts: 239
Likes: 30
From: Columbus, GA
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Try this:
Loosen/remove enough of the steering column trim to get at the turn signal/headlight/flash-to-pass/etc. stalk. There should be four sets of cables going to the back of it.
Three of the cables plug in to the lever assembly body directly. The other one is a short pigtail with a black connector on the end. That connector is called C1.
As you sit in the car, C1 is leftmost. C3 (gray) is in the middle, and C2 (black) is on the right, closest to the steering column. C4 (gray) is on the top.
Unplug C2. That's where the flash-to-pass signal is.
Take the C2 cable and jumper pins A (brown wire) and B (black wire) together. That should cause the high beams to light up as if you pulled the flash-to-pass lever.
If the lights come on, your lever is bad.
Loosen/remove enough of the steering column trim to get at the turn signal/headlight/flash-to-pass/etc. stalk. There should be four sets of cables going to the back of it.
Three of the cables plug in to the lever assembly body directly. The other one is a short pigtail with a black connector on the end. That connector is called C1.
As you sit in the car, C1 is leftmost. C3 (gray) is in the middle, and C2 (black) is on the right, closest to the steering column. C4 (gray) is on the top.
Unplug C2. That's where the flash-to-pass signal is.
Take the C2 cable and jumper pins A (brown wire) and B (black wire) together. That should cause the high beams to light up as if you pulled the flash-to-pass lever.
If the lights come on, your lever is bad.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski