Hi all,
Anyone know off hand how the instrument cluster brake lamp wiring is done? Clearly I've studied the wiring diagram in the manual, but I'm using a 1968 ignition switch (in a 67), and my cluster had been wired by scratch (by myself.. ages ago), and I just ripped out a universal harness.. So I'm starting from scratch again.
Going by the diagram for a 68, it looks like...
Wire 640 (Red/Yellow) is going to one side of the bulb.. From the ammeter (no longer have)?
The other side, 997 doesn't even have a Color call out in the diagram.
(Attached the diagram I'm looking at for the cluster)
From what I remember, this Brake Light in the cluster has something to do with the black -ve wire in the ignition switch (Which I wasn't using). Prove-Out?
So normally I would assume there is +ve going to the brake switch (in the MC), and that goes to one side of the bulb, and the other side gets grounded to the ignition switch.
but that wouldn't work since the dash light still wouldn't illuminate as the Ignition on Test without having the Brake Light switch (on the MC) closed. Soo..
Anyone wired one of these Dash Warning lamps up from scratch?
Thanks!
Anyone know off hand how the instrument cluster brake lamp wiring is done? Clearly I've studied the wiring diagram in the manual, but I'm using a 1968 ignition switch (in a 67), and my cluster had been wired by scratch (by myself.. ages ago), and I just ripped out a universal harness.. So I'm starting from scratch again.
Going by the diagram for a 68, it looks like...
Wire 640 (Red/Yellow) is going to one side of the bulb.. From the ammeter (no longer have)?
The other side, 997 doesn't even have a Color call out in the diagram.
(Attached the diagram I'm looking at for the cluster)
From what I remember, this Brake Light in the cluster has something to do with the black -ve wire in the ignition switch (Which I wasn't using). Prove-Out?
So normally I would assume there is +ve going to the brake switch (in the MC), and that goes to one side of the bulb, and the other side gets grounded to the ignition switch.
but that wouldn't work since the dash light still wouldn't illuminate as the Ignition on Test without having the Brake Light switch (on the MC) closed. Soo..
Anyone wired one of these Dash Warning lamps up from scratch?
Thanks!
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