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I have a Volvo VNL 780 with aftertreatment fault code

I have a Volvo...

I have a Volvo VNL 780 with aftertreatment fault code P20B913

Mechanic's Assistant: Just to clarify, what's the exact code? And have you tried to reset it?

P20B913

Mechanic's Assistant: What year is your Volvo 780?

2018

Mechanic's Assistant: Are you fixing your Volvo 780 yourself? What have you tried so far?

I will pass the info on to the dealer if I can get an idea of the problem

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I also have another code for VEH ECU. The code being PSID 230 FMI5

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Customer reply replied 3 years ago
Can I reset these codes my self without a computer? Before or after i get fixed?
Answered in 1 day by:
2/18/2019
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,605
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified

Hello and thanks for using just answer, My name is***** am sorry that you are having aftertreatment issue. Your P20B913 relates to the reductant heater. This is for the def system to keep it from freezing. On this fault for it to go to an inactive state the system will need to be either cleared with a PC or go thru 2 operational checks and operate for the acm to see that it is working as it should. The line heaters will need to have the resistance checked on them to verify if it is a line heater issues or in the wiring, It is pretty much 50/50 on what I have seen, I work for a dealer so they will find this in triage after the vehicle is written up. On your psid 230 fault. Typically this fault is thrown when the batteries were dead, unit was jump started, or battery switch turned off too soon. Please let me know if you have any other questions on this issue,, Thank you and have a nice day.

Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,605
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,605
6,605 Satisfied Customers
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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