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2010 ram diesel has "service trailer brake wiring" message…

Customer Question
2010 ram diesel has...

2010 ram diesel has "service trailer brake wiring" message all the time., both with and without trailer connected. have checked fuses.

Mechanic's Assistant: Most vehicles have two fuse panels. Have you located both?

Don't know for sure but cant find second fuse box.

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

Yes, am a retired cummins service maniger.

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

All lights are functioning in trailer and have checked trailer wiring to trailer and break-away system. Thanks

Submitted: 7 months ago.Category: Dodge
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Answered in 55 minutes by:
12/16/2017
Dodge Mechanic: Chris, Shop Foreman replied 7 months ago
Chris
Chris, Shop Foreman
Category: Dodge
Satisfied Customers: 14,872
Experience: Dodge/Cummins and Chrysler Certified Master Tech
Verified

Hello, my name is ***** ***** I will assist you today. The "service trailer brake" message can be displayed because of several circuit faults or communication with other modules. In order to diagnose this properly, you will need to have the WiTech scan tool connected to the truck and see what diagnostic trouble code(s) are being set in the ITBM. A list of codes are:

  • C10C5-92 ELCTRONIC TRAILER BRAKE ACCELEROMETER-PERFORMANCE OR INCORRECT OPERATION
  • C10C6-92 ELCTRONIC TRAILER BRAKE MANUAL LEVER-PERFORMANCE OR INCORRECT OPERATION
  • C10C7-00 ELECTRONIC TRAILER BRAKE CONTROL OUTPUT
  • C10C7-11 ELECTRONIC TRAILER BRAKE CONTROL OUTPUT-CIRCUIT SHORT TO GROUND
  • C10C7-12 ELECTRONIC TRAILER BRAKE CONTROL OUTPUT-CIRCUIT SHORT TO BATTERY
  • C10C7-19 ELECTRONIC TRAILER BRAKE CONTROL OUTPUT-OVERCURRENT
  • C10C9-00 ELCTRONIC TRAILER BRAKE MANUAL LEVER FAILSAFE CIRCUIT
  • C2129-16 BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD
  • C2129-17 BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD
  • C2213-00 TRAILER BRAKE MODULE INTERNAL
  • C2213-42-TRAILER BRAKE MODULE INTERNAL-GENERAL MEMORY FAILURE
  • C2214-00-ITBM NOT CALIBRATED
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Chris, Shop Foreman
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