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Juan Crespo
Juan Crespo, ASE Certified Technician
Category: Volvo
Satisfied Customers: 1526
Experience:  A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
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I have a code coming up on my code sencor indicating that

Customer Question

I have a code coming up on my code sencor indicating that I509141 is coming up. What does this mean???
Submitted: 2 years ago.
Category: Volvo
Expert:  Juan Crespo replied 2 years ago.

Hi there. Welcome to our site.

I think you're referring to ISO9141, which is not a code, but the communication protocol used on 2001-2004 Volvos. I can probably help you solve your issue; I just need to ask you a couple of questions:

  • Is the Check Engine Light on?
  • What's is your code reader's brand and model?