Shift light needs VSS.... but where?
Thread Starter
Racer
Joined: Oct 2008
Posts: 349
Likes: 18
From: SoCal
Shift light needs VSS.... but where?
So I got a raptor shift light like everyone likes to run and am gonna wire it up tomorrow afternoon and was reading through the instructions and it needs a signal from the VSS to differentiate between the launch setting and the shift setting.
Now I know to get the pink wire and white wire from the harness to the left of the column, and ground is obviously an easy one... but where the eff can I can't a VSS signal? I've read a few posts about people using the green/white wire behind the radio, and some people talking about picking it up under the dash, I'm hoping I can pick it up in that loom!! Lol
Now I know to get the pink wire and white wire from the harness to the left of the column, and ground is obviously an easy one... but where the eff can I can't a VSS signal? I've read a few posts about people using the green/white wire behind the radio, and some people talking about picking it up under the dash, I'm hoping I can pick it up in that loom!! Lol
Melting Slicks
Joined: Jun 2002
Posts: 2,246
Likes: 66
From: Middletown CT
I guess I'm a little late with this. Maybe it will help the next person.
I found this link and information on Raptor's website.
https://www.corvetteforum.com/forums...e-install.html
97-98 Corvette:
Tach signal is at PCM, blue connector (C2), pin #35, white wire Vss signal is at PCM, red connector (C1), pin #55, dark green with white stripe wire
99-2004 Corvette:
Tach signal is at PCM, red connector (C2), pin #10, white wire Vss signal is at PCM, red connector (C2), pin # 50, dark green with white stripe wire
**NOTE**
For LS1/LS6/LS2/LS7/LS9 engines, set shift light to "4 cylinder" mode for 2 pulse/rev (PCM tach out terminal is "2 pulse/rev)
Vss is vehicle speed signal from PCM (connect white wire of dual mode shift light here).
Tach signal is engine speed (rpm) (connect green wire of shift light here).
I found this link and information on Raptor's website.
https://www.corvetteforum.com/forums...e-install.html
97-98 Corvette:
Tach signal is at PCM, blue connector (C2), pin #35, white wire Vss signal is at PCM, red connector (C1), pin #55, dark green with white stripe wire
99-2004 Corvette:
Tach signal is at PCM, red connector (C2), pin #10, white wire Vss signal is at PCM, red connector (C2), pin # 50, dark green with white stripe wire
**NOTE**
For LS1/LS6/LS2/LS7/LS9 engines, set shift light to "4 cylinder" mode for 2 pulse/rev (PCM tach out terminal is "2 pulse/rev)
Vss is vehicle speed signal from PCM (connect white wire of dual mode shift light here).
Tach signal is engine speed (rpm) (connect green wire of shift light here).
Last edited by Greg_E; May 10, 2017 at 09:40 PM.
