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Cruise control with Drive-by-Wire issue.....

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Old Apr 9, 2006 | 11:55 PM
  #1  
jdperk-86elco's Avatar
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From: Kansas City, MO
Default Cruise control with Drive-by-Wire issue.....

I have installed the Corvette drive-by-wire system to get cruise control but for some reason I can not get the cruise to work. The throttle works fine and the car is driveable.

I have had a friend use a scanner to monitor the stalk switch and brake switch while driving and he stated all the signals are there.

Questions:

Can the cruise function can be turned off in the PCM?

Can EFI Live view the switch inputs for troubleshooting and can it turn on the cruise functionality? I am going to purchase EFI Live soon.

My wiring looks correct and I tried a new TAC box so my last thought is that the cruise is turned off in the PCM. The brake switches look to be correct.

Thanks for your help
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Old Apr 24, 2006 | 04:35 PM
  #2  
jdperk-86elco's Avatar
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From: Kansas City, MO
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Anyone work with the Corvette drive by wire system in their swap? I was hoping for someone to get their cruise to work or have a problem and post their fix to help me fix mine.

All my wiring looks good, the TAC box swap didn't fix it, so I am waiting on my EFILive software to see if there is any trouble codes that have locked it out or maybe the PCM has locked it out.
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Old Apr 28, 2006 | 03:43 PM
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jdperk-86elco's Avatar
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From: Kansas City, MO
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With the purple wire going to the PCM TCC brake switch input (I think is pin 33) I have 10.4Vdc with the wire isolated from the brake switch. Could that mean the PCM output on that pin is bad?

My brake switch for this input switches 12VDC properly. EFI shows this input never changes.
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