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I know my trouble codes but they are dealership codes. how do i find out what they mean?

How do i find out what my OBD codes are telling me when they are dealership codes.

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  • tendr247
    tendr247 Nov 01, 2012

    my car is a 1990 buick riviera and the code is 6420c ( i think the c means current) it's a dealership code and i need to know what it means.

  • tendr247
    tendr247 Nov 03, 2012

    those codes are no.2 codes for newer cars.

  • tendr247
    tendr247 Nov 03, 2012

    i need DEALERSHIP codes for 1990 buick riviera. I thought for sure someone out there with the same car had at sometime had the same problem and could help. today's my daughter's wedding and i have to try to find a ride there. NO FUN.

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Posted on Nov 01, 2012

5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ginko
  • 19396 Answers

SOURCE: trouble codes

Means 62 PCM failure SRI mile not stored.

The service manual says : replace PCM.

Disconnect battery ground for twenty minutes, if you keep getting the code you should replace PCM module.

Posted on Oct 24, 2008

  • 67 Answers

SOURCE: Emission test found some trouble codes

U0121 Communication error to ABS HU/CM

Posted on Apr 06, 2009

Molson02536
  • 3854 Answers

SOURCE: Did not pass state inspection (vehicle)

First the fault codes,
U110C is No Fuel Level Bus Message
U0155 is No Cluster Bus Message.
Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.




Posted on Mar 02, 2010

  • 3640 Answers

SOURCE: OBD system diagnostic trouble codes?

po123-tps curcuit high---po138-02 sensor high volts bank 1 sensor 2,--po205--injector curcuit open cylinder 5,---po305-- misfire cylinder 5,--po300 random/multible mis fire,

Posted on Jun 11, 2010

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I hope this helps and is what your looking for... good luck

http://www.fordobdcode.com/p0715-ford

Ford P0715 OBD-II Trouble Code Definition:
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