1995 Chevrolet Lumina APV Q&A
1995 Chevrolet Lumina APV Question: OBD1
So I looked under the hood & it says OBD1 certified. So were is the B pin so I can run a jumper wire to get the codes out? Looking at the plug the A pin top right the B pin should be right next to it on top nothing. Under the A pin there is a pin but I don't want to jump that as I don't know what it will do. There is a total of three pins? If it is an OBD1 I should be able to get the codes but what pins do I jump? Thank you! - my70chevelless
Your 1995 Chevrolet Lumina APV was built in the transition years between OBDI and OBDII. It is possible your Lumina has an OBDI system and an OBDII connector. If your data plug is rectangular and has 12 terminals that is an OBDI connector and "A" should be in one corner, using the narrow raised ridge on one edge of the connector as a guide. With the ridge on top "A" should be on the upper right and "B" right next to it. If you have a 16pin connector that would be OBDII and you may need a scan tool to read the codes. - Oakman
...I looked for one all the ones said 1996 & latter for OBD2. My van being a 1995 I thought great OBD1 I can jump the A & B terminals to get the codes. Having said this I went out to do this & ye...
...un and minimum is very unstable and vibrates much put a wire on terminals "B" and "A" connector obd1 appears fault code 56 "quad driver module". I can do