DBW and throttle control
Thread Starter
On The Tree
Joined: Jan 2010
Posts: 177
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From: Belgium
DBW and throttle control I wired most of my engine, it is about ready to start
It's a LQ4 with LS1 harness, green/blue ECU. All recognized in HP Tuners
I just have a concern about my throttle body which is not moving when I actuate the electronic throttle pedal (ignition on, engine not running). Is that normal?
I have 2 gray wires coming out the DBW module that are cut (pin 2 and pin 14), maybe this is related?
All the pics:
https://imgur.com/a/1loUSI6
It's a LQ4 with LS1 harness, green/blue ECU. All recognized in HP Tuners
I just have a concern about my throttle body which is not moving when I actuate the electronic throttle pedal (ignition on, engine not running). Is that normal?
I have 2 gray wires coming out the DBW module that are cut (pin 2 and pin 14), maybe this is related?
All the pics:
https://imgur.com/a/1loUSI6
TECH Addict
Joined: Dec 2017
Posts: 2,182
Likes: 970
Wouldn't be surprised. Cut wires usually mean that the electrons intended to take that path, can't.
What happens when you hook em back up? Any codes?
A license should be required to buy / operate dykes; with a LONG prison sentence for anybody without a license caught with a pair in their hand.
What happens when you hook em back up? Any codes?
A license should be required to buy / operate dykes; with a LONG prison sentence for anybody without a license caught with a pair in their hand.
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Joined: Jun 2016
Posts: 22,293
Likes: 3,617
From: Central Cal.
TECH Addict
Joined: Dec 2017
Posts: 2,182
Likes: 970
Pin 2 is gray; takes 5V from the TAC module to the TPS on the TB. Pin 14 is Cruise Req, goes to the cruise control module.
I'd post the page from the FSM that has all this but I can't edit it.
You can buy the FSM on CD for like $15 or so. WORTH EVERY PENNY and then some. Get one for any vehicle that has the LQ4, LM7, LQ9, etc.; they're all basically the same wiring. I happen to have the ones for 04 Avalanche (duh) and 06 Escalade. LQ4 mostly came in Silverado; get the one for 04 Silvy, should be as close as possible to what you're working with.
I'd post the page from the FSM that has all this but I can't edit it.
You can buy the FSM on CD for like $15 or so. WORTH EVERY PENNY and then some. Get one for any vehicle that has the LQ4, LM7, LQ9, etc.; they're all basically the same wiring. I happen to have the ones for 04 Avalanche (duh) and 06 Escalade. LQ4 mostly came in Silverado; get the one for 04 Silvy, should be as close as possible to what you're working with.
Originally Posted by RB04Av;20184804[b
]Wouldn't be surprised. Cut wires usually mean that the electrons intended to take that path, can't.[/b]
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Thread Starter
On The Tree
Joined: Jan 2010
Posts: 177
Likes: 1
From: Belgium
Pin 2 is gray; takes 5V from the TAC module to the TPS on the TB. Pin 14 is Cruise Req, goes to the cruise control module.
I'd post the page from the FSM that has all this but I can't edit it.
You can buy the FSM on CD for like $15 or so. WORTH EVERY PENNY and then some. Get one for any vehicle that has the LQ4, LM7, LQ9, etc.; they're all basically the same wiring. I happen to have the ones for 04 Avalanche (duh) and 06 Escalade. LQ4 mostly came in Silverado; get the one for 04 Silvy, should be as close as possible to what you're working with.
I'd post the page from the FSM that has all this but I can't edit it.
You can buy the FSM on CD for like $15 or so. WORTH EVERY PENNY and then some. Get one for any vehicle that has the LQ4, LM7, LQ9, etc.; they're all basically the same wiring. I happen to have the ones for 04 Avalanche (duh) and 06 Escalade. LQ4 mostly came in Silverado; get the one for 04 Silvy, should be as close as possible to what you're working with.
0x10: U0107 - Lost Communication With Throttle Actuator Control Module (Pending, Current)
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When you turn the key to run position, before starting, the TB should move several degrees open and then back. You can actually hear this happening if shop is quietish. If it’s not doing this, you have a communication issue with the Tac and the computer/pedal.
Edit...At least I know the Gen4 stuff does this. Maybe Gen3 with Tac module doesn’t?
Edit...At least I know the Gen4 stuff does this. Maybe Gen3 with Tac module doesn’t?
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