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J1587. Communication error, the truck starts but won’t

Customer Question
J1587. Communication error...

J1587. Communication error , the truck starts but won’t respond to fuel pedal

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts.

Ok

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

Fuses ,battery

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

I changed the fuel water separator

Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 1 minute by:
3/12/2020
Technician: Chris (aka-Moose), Technician replied 2 years ago
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 76,871
Experience: 24 years of experience diagnosing & repairing
Verified

Welcome to Just Answer I'm Chris aka Moose, I'm sorry you are having problems with your throttle response. I will do my best to help you get this resolved. If I happen to be helping another or step away during our communication, please know I will follow up as soon as I am back available/online.

  • Can I get the year, make, model, and engine?
  • J1587 is not a Ford trouble code. How did you get this code?
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Customer reply replied 2 years ago
2012 vnl volvoD13
Technician: Chris (aka-Moose), Technician replied 2 years ago

I will need to opt-out and move you to the correct category. You are in the Ford category.

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Customer reply replied 2 years ago
I need a Volvo guy please
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 2 years ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,447
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
Hello and thank you for using Just Answer. My name is ***** ***** I’d like to try and help. Please allow me a few moments to look over your question and I will be right back with you. Thank you
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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 2 years ago

On your issue, There is a few common spots to check. The vecu is located under the main fuse panel in the dash. This is what controls the throttle pedal and data links it to the engine ecm. The vecu gets its power from the batteries via the fuse holder. I would check this connection out good and make sure the connection, fuse, and wiring is good. If there are no issues with that then go to the firewall and check the big black connectors for any rubs or corrosion. Check the main cab pass thru connector and make sure there is no corrosion present there. If that is fine, then check the basic data link checks out at the 9 pin diag connector, make sure you have your 60 ohms over 1939 and 1.5-2.4 on low and 2.5-2.9 on high. Then check the 1587/1708 from the 9 pin to the center plug of the vecu. If all of this is fine and you can communicate with the vecu with the cluster or scan tool then you will want to try a test vecu. I hope this helps you on the right path. Thank you.

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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,447
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