1995 c1500. Bad ecm?

[PlayingWithTBI]

I wonder if he's confusing it with code 12 (the default "OK" code).

That's a thought.

 

[Dropped88]

They are called weather pack connectors. GM used them for many years.

You can buy a variety pack to replace broken ones or even make your own connections

 

[someotherguy]

That's a thought.

Considering all the other issues he's having, I maintain it's gonna be ground issues or something similar. He mentioned a CTS code, headlight issues, etc.

I know there's often lots of talk about OBD1/1.5 when bringing up 1994, 1995 models of whatever vehicle when it comes to troubleshooting, but all the ones I've worked on (not a million but plenty) are OBD1 with the expected 12 pin connector. I'm pretty sure the confusion comes in because *some* GM vehicles were OBD1.5 with the 16 pin at that point.. but not the GMT400's. They went straight to OBD2 in 1996.

Richard

 

[Jeepwalker]

...*some* GM vehicles were OBD1.5 with the 16 pin at that point.. but not the GMT400's. They went straight to OBD2 in 1996.

I wasn't aware of that... Thanks

 

[someotherguy]

I wasn't aware of that... Thanks

I'm no authority on the subject, I've just worked on a bunch of 'em. Not all of 'em. So there's the possibility that I'm wrong on this; I've just never seen one that is 1.5

Richard

 

[1998_K1500_Sub]

I'm no authority on the subject, I've just worked on a bunch of 'em. Not all of 'em. So there's the possibility that I'm wrong on this; I've just never seen one that is 1.5

Richard

I had one of those OBD1.5 on a 1995 S10 VIN Z (TBI) 4.3L pickup. ECU was in the engine bay.

I also had a 1995 S10 VIN Z (TBI) 4.3L that was "pure" OBD1, same engine as the one above but the old-style ECU was in the cab.

Also had 1995 S10 Blazer VIN W (CPFI) 4.3L that was OBD1.

So as Richard says, they're out there in GM land... maybe not on GMT400s.