Fulltext TSBs

Technical Service Bulletins

TSB
09-9-1
  • WIRING FAULT ON TRAILER DISPLAYED IN MESSAGE CENTER – DTC C2806
Publication Date: April 22, 2009

FORD:
2008 F-Super Duty

ISSUE:

Some 2008 F-Super Duty vehicles equipped with a factory trailer brake control (TBC) system may have a wiring fault on trailer in the message center and/or diagnostic trouble code (DTC) C2806 stored in the trailer brake control module. DTC C2806 is set when a short exists between any circuit and the output line.

ACTION:

Refer to the following Service Procedure to correct the condition.

SERVICE PROCEDURE

NOTE:PLEASE PERFORM EVERY STEP TO AVOID REPEAT REPAIRS:

  1. All circuits in 7-pin connector bundle, right/left turn signal, back up lamp, brake lamp, and tail lamp should be activated in turn, while checking for voltage on output line.
  2. Check aftermarket wiring, especially on 5th wheel hitches. All wiring must be soldered and shrink wrapped. Use of Scotch locks or other connectors is not recommended.
  3. Check for water intrusion in connector C4099 and round 7-pin connector.
    1. If water intrusion is found – Replacement is necessary for both connector C4099 with a new pigtail and the round 7-pin connector. Add Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound to connector pins.
    2. If no water intrusion exists, follow Workshop Manual, Section 206-10 pinpoint test.

PART NUMBERPART NAME
3U2Z-14S411-JXAPigtail
XG-3-AMotorcraft® Silicone Brake Caliper Grease and Dielectric Compound

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATIONDESCRIPTIONTIME
090901A2008 F-Super Duty: Replace Connector, Includes Time To Check Voltages (Do Not Use With 14200A)1.1 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
13A57642