1998 Chevy S-10 Trouble Codes

Tiny
TACKETTM
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 182,000 MILES
I cannot retrieve any codes from the computer. Engine was running fine and started to miss. I did not get a check engine light but I connected my code reader and did not get any response from the control module. The code reader works fine on my other vehicle.
Wednesday, July 29th, 2009 AT 7:31 AM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS


https://www.2carpros.com/forum/automotive_pictures/170934_obd11_3.jpg



With the standard obd11 datalink connector, pin 16 is battery voltage, hot all the time. Pins 4 & 5 are grounds. Are you using an obd11 code reader? If your missing voltage on pin 16, maybe we can track it down?

How long since a tune-up, have you done any basic testing? Check for spark at the plugs, check fuel pressure?
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Wednesday, July 29th, 2009 AT 10:41 AM
Tiny
TACKETTM
  • MEMBER
  • 2 POSTS
I am using an obd11 code reader. There is no voltage on pin 16. Pins 4 and 5 are ground.
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Wednesday, July 29th, 2009 AT 12:01 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Check the cigar lighter fuse and circuit.
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Thursday, July 30th, 2009 AT 8:00 AM

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