*** Restricting New Posts to SD Premium Members ONLY *** (09 May 2025)

Just made a new account? Can't post? Click above.

Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

Reading OBD "1.5" codes

  • AJeep18
  • AJeep18's Avatar Topic Author
  • Offline
  • Elite Member
  • Elite Member
More
4 years 4 months ago #48589 by AJeep18
Reading OBD "1.5" codes was created by AJeep18
Currently working on a 1995 Buick and trying to read the trouble codes. From what I understand it is an OBD 1 system, going by the year, but it definitely has an OBDII plug... My cheapo code reader just says error. Can I short the pins and get the light to blink? Any thoughts appreciated!

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #48590 by Ben
Replied by Ben on topic Re:Reading OBD "1.5" codes
Some 95 vehicles had implemented obd2. I would not try to short terminals try a different scan tool

Sent from my SM-G781U using Tapatalk

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #48591 by Ben
Replied by Ben on topic Re:Reading OBD "1.5" codes
Also check power and ground on dlc

Sent from my SM-G781U using Tapatalk
The following user(s) said Thank You: Andy.MacFadyen

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #48594 by Hardtopdr2
Replied by Hardtopdr2 on topic Re:Reading OBD "1.5" codes
You will either need to buy the special adapter for obd 1.5 or make one by googling obd 1.5. A different scan tool will not work in this case.

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago - 4 years 4 months ago #48597 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Reading OBD "1.5" codes
ISTR Ivan on the Pine Hollow Auto Diagnostic Channel did a comparision trial on using Autel, Launch and Snap-on on a 92 GM OBD1.5
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)
Last edit: 4 years 4 months ago by Andy.MacFadyen.

Please Log in or Create an account to join the conversation.

  • AJeep18
  • AJeep18's Avatar Topic Author
  • Offline
  • Elite Member
  • Elite Member
More
4 years 4 months ago #48727 by AJeep18
Replied by AJeep18 on topic Reading OBD "1.5" codes
Well, as it turns out my Bosch 525 was able to read the codes! It obviously was not able to auto ID it but, I was able to manually enter it. For some reason the first time it wasn't able to connect and read the code but I tried again and it did work!

Please Log in or Create an account to join the conversation.

Time to create page: 0.357 seconds