Question about Ford F-350

1 Answer

We have a 2011 ford f350 and are trying to t/s the reverse lights. we checked the fuses. what else might it be. we cant find a diagram to the wiring.

Reverse lights not working. where can we get a free wiring diagram.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Ford Master
  • 15,575 Answers

In the BJB - battery junction box under the hood ,is a reversing lamp relay. Check it or try a known good one !an check fuse F70 10amp in the BJB .

Reversing Lamps

The reversing lamp system consists of the following components:

  • Rear lamps
  • Reversing lamp switch
  • PCM
  • BCM

When the transmission is placed in REVERSE (R), the BCM provides voltage to the reversing lamps. The reversing lamps are located within the rear lamp assemblies.
When the transmission is in REVERSE, the PCM (gasoline engine) or the Transmission Control Module (TCM) (diesel engine) sends a message over the High Speed Controller Area Network (HS-CAN) to the Body Control Module (BCM) indicating the transmission is in REVERSE. The BCM provides voltage to the reversing lamps when it receives the message that the transmission is in REVERSE and the ignition is in the RUN state. You could have a transmission range sensor problem , check to see if it is adjusted correctly ! Need to have a scan tool to make sure the BCM is receiving signal from the PCM . This is complex for someone who doesn't deal with or know about serial data communications ! All it is ,is electric inputs to a control module, then the control module configures it into data bits an bytes 1's an 0's then sends it out on the Data bus. The module that needs this info reads it an turns on the lights.This system can set codes in the bcm ,leading to a problem.

  • DTC B1277:11 (Reverse Lamp: Circuit Short To Ground) - a DTC that sets when the BCMdetects a short to ground from the reversing lamp output circuit.
  • DTC B1277:15 (Reverse Lamp: Circuit Short To Battery or Open) - a DTC that sets when the BCMdetects an open from the reversing lamp output circuit.
  • Could set codes in the PCM - powertrain control module for a transmission range sensor problem !
  • Posted on Jan 28, 2015


    1 Suggested Answer

    • 2 Answers

    SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

    Hi there,
    Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

    Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

    Here's a link to this great service

    Good luck!

    Posted on Jan 02, 2017


    Add Your Answer

    Uploading: 0%


    Complete. Click "Add" to insert your video. Add



    Related Questions:

    1 Answer

    My 2000 Ford F350 Super Duty won't go reverse. I can drive straight but cannot reverse.

    Wiring, schematic, electrical diagrams, fuse diag, error codes etc are basic contents of these online books they have here on this website I have attached. Must
    check it out

    Mar 14, 2018 | Ford F-350 Cars & Trucks

    1 Answer

    Looking for a fuel pump circuit wiring diagram for a 2012 ford f350 6.2l 6 speed trans.

    Go to BBB Industries website (registration required...

    2011 is as close as you can get on this website: wiring
    engine fuel tank (but the factory diagrams show
    your 2 tanks...

    BBB Industries Premium Alternators Starters Power Steering Products

    Hope this helps

    Carnac the Magnificent

    Nov 24, 2017 | Ford Cars & Trucks

    1 Answer

    On a 2004 ford f350 v10 triton automatic trans where is the reverse light switch located exactly

    Here is a locator pic from form manual second one is a diagram of the electrical circuit

    A= to reversing lamps

    Oct 05, 2014 | 2004 Ford F350

    2 Answers

    Dash Lights Wont Come On

    yes, first check the fuse, or you can try to check the Dimmer switch.
    China OBD2 car diagnostic tools wholesale on CareUCar

    Mar 03, 2014 | 2011 Chevrolet Aveo

    2 Answers

    Fuse box

    There are few related help links for vehicle fuse box.Go through the list and click the required link:-----

    2009 Toyota Corolla: Fuse Box Module Removal?

    1986 Chevrolet Corvette Fuse Box Diagram

    1996 Chevy Cavalier Cluster Fuse Box Diagram?

    2004 Jeep Cherokee Fuse Box?

    2007 Saturn Outlook Fuse Box

    Lincoln Signature Series Engine Compartment Fuse Box

    2005 Chevy Impala: Fog light Relay and fuse box diagram?

    Freightliner fl112 fuse box diagram?

    Where is Fuse box located on 2002 Honda Accord?

    Toyota Hilux Surf Fuse Box Diagram?

    2006 PT cruiser Fuse Box

    Ford inside fuse box diagram showing fuel pump relay?

    Ford fuel pump fuse layout diagram?


    Saturn Fuse Box Diagram

    "Mercedes Benz" Ml 500 "Fuse Box Diagram"

    2003 Cadillac Deville DTS Underhood Fuse Box Diagram

    Kia Fuse box?

    Where is Fuse box located on 2002 Honda Accord?

    Which Fuse controls A/C system on 2003 Ford Taurus?


    1997 Chevy Malibu Cigarette Lighter Fuse?

    Where is Instrument cluster Light Fuse located on 1996 Honda Accord?


    These details will help.


    Nov 26, 2012 | 1999 Jeep Cherokee

    1 Answer

    1990 ford f350 rear lights diagram

    Here you go. Hope this helps.


    Mar 17, 2012 | Ford Cars & Trucks

    2 Answers

    We need a diagram for fuse panel for our 2003 f350,we pull cars & having trouble with lights on trailer,all wiring in tact?is cruise control a fuse also?

    I frequently use and highly recommend registering for free at Your registration gives you access to a variety of repair and shop manuals, most giving you detailed repair instructions and diagrams.

    Jul 23, 2011 | 2004 Ford F350

    2 Answers

    Need a wiring diagraham for ford f350 1990

    do you need an engine wiring diagram?.....need to know engine size then ill send ya what i have,

    Aug 25, 2010 | 1990 Ford F350

    1 Answer

    I have a Ford F350 and cruise doen't work but I have no diagram of the fuse box to know which one to check

    You have a fuse panel in the truck cab & one under hood.Both have a label inside as you take off cover. If you cant read them or are not there hook up a test light. Clip to ground then test across each with point end. Sometimes you gotta do what you gotta do.

    Jun 06, 2010 | 2004 Ford F350

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    1,150 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Ford Experts


    Level 3 Expert

    84027 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22483 Answers

    gerry bissi

    Level 3 Expert

    4387 Answers

    Are you a Ford Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides