Looking for Gmlan can bus wakeup message
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04colyZQ8
- Posts: 380
- Joined: Thu Jan 16, 2014 12:41 pm
- cars: 2004 Colorado 4.8L swap
86/90 Jimmy 6.5L diesel swap
80 Chevrolet Silverado TBI swap
88dodge W100 LPG conversion
Looking for Gmlan can bus wakeup message
Trying to wakeup e67 pcm Over obd2 port should be the same as e38, e67, e40, e92,e78 etc
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ironduke
- Posts: 582
- Joined: Thu Feb 13, 2020 11:32 pm
- cars: Mainly GM trucks, a Cruze and an Equinox for dailys..
Re: Looking for Gmlan can bus wakeup message
I don't think there is one? The E38,E92,E78 stay awake for as long as I have the battery and ign feeds turned on.. They don't ever seem to go to sleep from inactivity on the bench.. I cannot say for certain on the E67 though. I thought the wakeup was for pin 1 gmlan only modules..
The BCM does control a relay(run/crank) that is 1 of the ign signals, there's usually a second one from the ign switch. Don't know if you could wakeup/turn on the ecm with just the one ign signal??
The BCM does control a relay(run/crank) that is 1 of the ign signals, there's usually a second one from the ign switch. Don't know if you could wakeup/turn on the ecm with just the one ign signal??
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04colyZQ8
- Posts: 380
- Joined: Thu Jan 16, 2014 12:41 pm
- cars: 2004 Colorado 4.8L swap
86/90 Jimmy 6.5L diesel swap
80 Chevrolet Silverado TBI swap
88dodge W100 LPG conversion
Re: Looking for Gmlan can bus wakeup message
Oh that sucks back to the drawing Board then!
E40 let’s you start with it pin 18, but throws code for ignition 0 voltage missing
Don’t think the e67 will. Maybe if i send 12 volts to 806 crank voltage pin?
E40 let’s you start with it pin 18, but throws code for ignition 0 voltage missing
Don’t think the e67 will. Maybe if i send 12 volts to 806 crank voltage pin?