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TR4/4A Flash to Pass

RJS

Jedi Warrior
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Hi

Mine is a '66 TR4A IRS. My project this week was re-bushing my steering column. As I was under the dash and studying the wire harness from the steering column I noticed a single brown wire not connected to anything. I began to wonder if this was related to the often storied "flash to pass" feature. Hopped on the internet which led me to a solution and this diagram:

1724694395921.png


After I matched all the wire colors from the light switch harness (five wires in all) I felt confident. Presently, my brown w/ blue stripe from the switch was connected to the brown w/ blue stripe in the wire harness. I located a double snap connector in the basement and proceeded to connect the brown wire from the switch with the brown w/ blue stripe and - TA DA! Flash to Pass now working. Who would have thunk it after owning the car all these years.

Hope this helps someone. Apparently, the published wire diagrams have it wrong

Bob
 
I'm trying to remember what I did a year ago... I ended up with a functional flash-to-pass switch. Looking at the wiring diagram, like you say, it does not make sense. I might have used a multimeter to "chase" the connections...?

Regardless, it's not often I flash my lights to pass someone :smile: Usually just a friendly "I see you, go ahead" flash!
 
Mike

Agree, not often I am passing in the fast lane. But, occasionally it would be nice to flash someone with that "go ahead" signal, or a friendly "hi" to a fellow LBC.

On my first test drive on Sunday I flashed a passing MG and he just stared as he drove past. I think he was trying to figure out how that happened.

Bob
 
Mike

Agree, not often I am passing in the fast lane. But, occasionally it would be nice to flash someone with that "go ahead" signal, or a friendly "hi" to a fellow LBC.

On my first test drive on Sunday I flashed a passing MG and he just stared as he drove past. I think he was trying to figure out how that happened.

Bob
MGs generally use a blast of Lucas smoke when passing :smile:

Kidding, of course!
 
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