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2004 F150 with a parking sensor and backup lamps that don't work. Are they related or separate issues? The fuse for the back up lamps work several other things and they all work so I assume that is not it?? Any suggestions? Thanks

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Reverse lights stay on in drive 2004 buick rendezvous cxl


Backup Lamps
The TURN SIG fuse in the console fuse block supplies battery positive voltage to park neutral position switch. When the gear selector lever is in the REVERSE position, power is supplied to both of the backup lamps. The backup lamps are grounded at G401 and G402.
Do you know what DTC'S - diagnostic trouble codes are ?
DTC B2552
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamp relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
DTC B2553
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamps relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
Backup Lamps Always On
  1. Turn ON the ignition.
  2. Shift the gear selector lever to the REVERSE position and then to the PARK position.
Do the backup lamps turn on in REVERSE and turn off in PARK?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

Remove the backup lamps relay.
Do the backup lamps turn OFF?
Go to Step 5
Go to Step 4

4

Repair a short in the backup lamps relay switched battery positive voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Check the back-up lamps relay #45 in the center console fuse/relay box .
Fuse Block - Center Console
Inside of console, behind the right console access panel

Check

Jun 11, 2016 | 2004 Buick Rendezvous

1 Answer

2004 Ford F-150 4X4 side marker lights not working. is there a seperate fuse for them?


The marker lamps are on with the parking lamps ( the low wattage element in the tail lamps ). If you are missing a single parking lamp, chances are the bulb is burnt out.

Apr 13, 2011 | 2004 Ford F150

2 Answers

My fog lights are not working, the relay is fine but not sure where the fuse is? Don't want to buy a service manual for this one simple thing. It does not tell you in the manual.


I have a 2004 f150 xlt triton. I couldn't figure out the how to turn on the fog lamps and the manual was not helpful.

Solution: turn the light switch all the way to the right and pull the switch (out) towards you. Push switch in and it turns off. The manual says to turn switch all the way to right but doesn't say to pull switch out.

Aug 25, 2010 | 2004 Ford F150

2 Answers

Running trailer lights not working, but brake


Did you check the fuse for the trailer tow adapter paring lamps ? This is a separate fuse powered by a relay, it is not the same circuit as the truck's parking lamps.
This is fuse # F10 & The half size ISO relay, R201 in the fuse panel in the passenger side kick panel.
This is based upon being a new body style 2004, not the 2004 Heritage or Lightning models, those are different fuse & relay locations.

Jun 05, 2010 | 2004 Ford F150

1 Answer

2004 Back-up sensor cut-off switch replaced, still B/U sensors do not indicate upcoming people.


The more common failure is one of the backup sensors, testing with a scanner will indicate which sensor in the system has failed and causing the Park aid to not work. You must have this info to test the system. Please rate this answer for me THankyou RJ

May 30, 2010 | 2004 Ford F150

2 Answers

My reverse lights don't work on my 04 F150 do you think the back-up switch is bad or just a fuse? javascript:;


I would check the bulbs, remove them and test with a DC power source ( DC power adapter to 2 wires Pos + Neg )

Fuse #14 has the reverse lamps on it, as well as the Day Time Running Lamps ( DRL ) relay coil, the shift interlock ( would not be able to take the truck out of park, while it was running ), and some other items I am missing at the moment.

If you cannot make the test harness to a DC power outlet, you can block the wheels ( at least 2 - front and rear ) on a level surface, turn the key to the run position ( do not start ) and place the truck in reverse, and check the bulb socket with a meter or test light to check for power.
If it is installed, you can also check the Trailer Tow adapter reverse circuit as well ( this is relay is triggered by the reverse circuit ).

If you do not have power at either ( don't forget to check for corrosion on the trailer tow 7 pin adapter ) this would be the DTR ( Digital Transmission Range ) sensor on the side of the automatic transmissions.

Have you used an aux backup lamp on the truck's reverse circuit ? ( not the trailer tow 7 pin adapter )
The DTR sensor and reverse circuit does not like 1 AMP additional load on it ( the lights will not burn at full brightness ) and if an additional load has been on them, the DTR sensor at the reverse contacts could be carbon'd up.

Nov 07, 2009 | 2004 Ford F150

1 Answer

Backup lights do not come on


Fuse 14 10A* Back-up lamps
this is from the owners manual, doubth this is the problem, if fuse is good the range selector switch (which contains the reverse light switch) on the side of trans may be bad

Aug 28, 2009 | 2004 Ford F150

2 Answers

Back-up lights and trailer running lights


My 2004 f150 has the factory tow package. It has a fuse for the trailer running lights seperate from the truck running light fuse.
Check, you may have the same set up...

Jul 21, 2008 | 2004 Ford F150

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