SPONSORED LINKS

Stored codes

Tiny
LALOGM1957
  • MEMBER
  • 1987 GMC S15
  • 2.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
The engine light is not on but I hook my OBD 1 scanner and it shows that codes are stored. Is that normal because my scanner won't erase the stored codes. The truck runs fine it just that those codes are stored.
Tuesday, October 30th, 2018 AT 6:05 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

When a code sets on the OBD1 system, it is a hard code. Once you repair it or if it corrects itself, it goes inactive on its own. It stays in long-term memory for as long as there is power.

If you did nothing when the light came on, chances are they will return as hard codes. What are the codes stored? Did you do any repairs for the codes?

Clearing feature will only clear active codes on OBD1 systems.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Tuesday, October 30th, 2018 AT 9:40 AM

Please login or register to post a reply.

Related Check Engine Light Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...

Sponsored links