Service Engine Soon light
#1
Service Engine Soon light
Ok I am pretty sure this has been asked and answered but I have not been able to locate it. So here is my problem
I have a 1995 Chevy Blazer LS 4 door 4 wheel drive, My service engine soon light is on. I have a obdII scanner and when I try to use it it says it can not link to my truck. I took it to O reillys and used there tools and again it says it can not link to my truck. I have the port under neath my dash. I tried the paper clip thing, but the top 2 ports on the right of my plug has no metel pieces in it to connect to. I think they say they are ports A and B. I can not seam to figure out how to read my codes any other way. I do know its one of those stupid transition years where they say its obd1.5 So how do I read my code? I am at a loss.
I have a 1995 Chevy Blazer LS 4 door 4 wheel drive, My service engine soon light is on. I have a obdII scanner and when I try to use it it says it can not link to my truck. I took it to O reillys and used there tools and again it says it can not link to my truck. I have the port under neath my dash. I tried the paper clip thing, but the top 2 ports on the right of my plug has no metel pieces in it to connect to. I think they say they are ports A and B. I can not seam to figure out how to read my codes any other way. I do know its one of those stupid transition years where they say its obd1.5 So how do I read my code? I am at a loss.
#2
Ok I am pretty sure this has been asked and answered but I have not been able to locate it. So here is my problem
I have a 1995 Chevy Blazer LS 4 door 4 wheel drive, My service engine soon light is on. I have a obdII scanner and when I try to use it it says it can not link to my truck. I took it to O reillys and used there tools and again it says it can not link to my truck. I have the port under neath my dash. I tried the paper clip thing, but the top 2 ports on the right of my plug has no metel pieces in it to connect to. I think they say they are ports A and B. I can not seam to figure out how to read my codes any other way. I do know its one of those stupid transition years where they say its obd1.5 So how do I read my code? I am at a loss.
I have a 1995 Chevy Blazer LS 4 door 4 wheel drive, My service engine soon light is on. I have a obdII scanner and when I try to use it it says it can not link to my truck. I took it to O reillys and used there tools and again it says it can not link to my truck. I have the port under neath my dash. I tried the paper clip thing, but the top 2 ports on the right of my plug has no metel pieces in it to connect to. I think they say they are ports A and B. I can not seam to figure out how to read my codes any other way. I do know its one of those stupid transition years where they say its obd1.5 So how do I read my code? I am at a loss.
Answer: if your OBD1.5 ECM is under the hood, you dont. If it's in the cabin, you can jump-read it.
by coolram » Mon Jan 17, 2005 3:31 pm
My '95 Jimmy is OBD 1.5(has the computor inside the cab but with 16 pin ALDL).I can read codes using a paper clip to jump the terminals(3rd and 4th terminals from the right on the top row are ground and diagnostic).Another signal your'e OBD1 or 1.5 is having 1 O2 sensor before the Cat.Having 2 O2 sensors(1 before and 1 after the Cat)is definitly OBD 2(now early '95 CA smog trucks I'm not
My '95 Jimmy is OBD 1.5(has the computor inside the cab but with 16 pin ALDL).I can read codes using a paper clip to jump the terminals(3rd and 4th terminals from the right on the top row are ground and diagnostic).Another signal your'e OBD1 or 1.5 is having 1 O2 sensor before the Cat.Having 2 O2 sensors(1 before and 1 after the Cat)is definitly OBD 2(now early '95 CA smog trucks I'm not
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