Codes access

Tiny
MCMAHOMA
  • MEMBER
  • 1989 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
How do I pull codes off of this car? Check engine light keeps coming on when idling @ stop. Thank you
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Tuesday, February 5th, 2008 AT 2:34 AM

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Tiny
RASMATAZ
  • MEMBER
Not familiar with your model but normally its located below

The diagnostic check connector should be on the bottom of the dash-right of steering column 16pin connector-jumper the two upper right terminal A to B

Count the flashes XX XXX X X XXX XX XXX equals to code 23
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Tuesday, February 5th, 2008 AT 4:05 AM
Tiny
MCMAHOMA
  • MEMBER
It flashed 1-2-1-2-1-2-7-3-8-39-43-43-43-44-44-44-1-2-1-2-1-2-21-21-34-39-39-39-43-43-43-44-44-44-1-2 andso on repeating. I got the 1-2 are set numbers. And 34-44-39-21 are all trouble codes. But the other numbers I don't know why they are in there. Where can I find out what these codes mean? Thank you for your time. I really appreciate it.
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Tuesday, February 5th, 2008 AT 2:45 PM
Tiny
RASMATAZ
  • MEMBER
DTC's

21=throttle position sensor

34=mass airflow sensor

39=torque converter clutch

44=lean exhaust
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Tuesday, February 5th, 2008 AT 2:57 PM

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