PO704 Clutch Switch Input Circuit
Thread Starter
Joined: Sep 2009
Posts: 254
Likes: 28
From: Dallas, Texas
Car: 92 RS
Engine: LS1
Transmission: TKX
Axle/Gears: 3.42
PO704 Clutch Switch Input Circuit
I recently added cruise control to my swap, and everything is working fine. However, I just started throwing PO704 recently. (Clutch Switch Input Circuit) I adjusted the switch thinking it might need a bit more room and it worked for a while. AFAIK the switch is brand new. There are only a few things I can think of that might be causing the issue. The car was originally auto and I wired the clutch switch in series with the brake switch. If I remember correctly, you will see 12v when nothing is depressed. If you press one or the other you no longer see 12 volts. Could it be the ECU is seeing < 12 volts all the time and thinking there is an issue?
The cruise control was working fine but I haven't tested since getting the code. I imagine it will not be working until I clear this code.
Configuration:
ls1
TKX
Stock Tune for M6 car (T56)
Cruise Module from a late-model truck
I also did just disable the PO803 (skip shift) since I do not have a T56?!?!?
Has anyone else seen this issue before?
Thanks
The cruise control was working fine but I haven't tested since getting the code. I imagine it will not be working until I clear this code.
Configuration:
ls1
TKX
Stock Tune for M6 car (T56)
Cruise Module from a late-model truck
I also did just disable the PO803 (skip shift) since I do not have a T56?!?!?
Has anyone else seen this issue before?
Thanks
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