Can't pull codes on my 95
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,845
Likes: 292
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Can't pull codes on my 95
Having trouble getting the 95 Vette into diagnostic mode.
Cars is skipping and the check engine light came on.
I tried jumping J2 to J4 & J5
Nothing.
I've done it before, but it's been a while.
I check the AC fuses
Thanks in advance
Cars is skipping and the check engine light came on.
I tried jumping J2 to J4 & J5
Nothing.
I've done it before, but it's been a while.
I check the AC fuses
Thanks in advance
Drifting
Joined: Apr 2020
Posts: 1,925
Likes: 610
From: Orange, CA
https://tech.corvettecentral.com/201...trouble-codes/
Please read these directions.
By the way, if you really did connect J2 to J4 and J5, then you connected the 160 Baud ALDL data line to ground. I don't think you hurt anything by doing this, but it's a good lesson as to why you should confirm before jabbing wires into the diagnostic port.
Please read these directions.
By the way, if you really did connect J2 to J4 and J5, then you connected the 160 Baud ALDL data line to ground. I don't think you hurt anything by doing this, but it's a good lesson as to why you should confirm before jabbing wires into the diagnostic port.
Drifting
Joined: Apr 2020
Posts: 1,925
Likes: 610
From: Orange, CA
Under which module? IIRC "C12" is just "no codes" (for Module 1), whereas H64 is either "Bank 2 (Right Front) Heated Oxygen Sensor (HO2S) #1 Circuit (Lean Exhaust Indicated)" (for Module 4) or "TPS Malfunction" (for Module 9). "C" means "Currently Active" and "H" means "Historical; not currently active."
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,845
Likes: 292
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Module 9 is
So why would that be TPS which is 22
module 9 ABS/ASR EBTCM (anti-lock brake system/acceleration slip regulation/electronic brake traction control module) codes
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Drifting
Joined: Apr 2020
Posts: 1,925
Likes: 610
From: Orange, CA
Because Module 9 has numbered codes just like every other module. While 22 is TPS on Module 4, 64 is TPS on Module 9. They are totally different computers with different inputs.
Best of luck to you. From the sound of it you meant Module 4, and you already know the cause because your engine is a basketcase. Fix your mechanical issues before you try to chase electrical ones.
Best of luck to you. From the sound of it you meant Module 4, and you already know the cause because your engine is a basketcase. Fix your mechanical issues before you try to chase electrical ones.