Reverse lights on while the car is running

Reversing light have the positive and negative pole present when gear is put in reverse while ignition key is at on.

You may be looking in the wrong place. It is on the transmission. The switch must be pretty wimpy because it doesn't directly drive the reverse lights, but connects to a reverse light relay in the smart junction box. The relay could be stuck. Unplug the two wire connector at the transmission then turn the key to RUN and see if the reverse lights are still on. If they are on then the relay is stuck and needs to be replaced. If they are not on then the switch in the transmission is bad.

remove your radio, there will be 2 bolts to undo, switch will slide into dash, unplug harness turn key to remove cable, if ignition wont turn you may have to take ignition apart to remove cable. reinstall in reverse procedure. will need to relearn new key to be able to start. try to start, leave key in run position, theft/security light will be blinking. leave on for 15 min or light stops blinking, turn off turn back to run without trying to start. leave on for another 15 min. turn off then start

Hi!
You did not specify the yr and model of your vehicle, but the procedure is the same, remove the tail light assembly as specified on your owners manual to replace a light bulb. Apply the Parking Brake and turn the ignition switch to the RUN position (do not start the vehicle), press the brake pedal and place the Shifter in REVERSE. Remove the Reverse light bulb and use a test light grounded to the vehicle chassis to find which one of the two wires going into the reverse light socket is the 12v+, once located, replace REVERSE light bulb, place shifter lever in PARK and turn key OFF.
Splice the 12v+ wire and connect the 12v+ lead from your camera to it, get your Ground (-) from the vehicle chassis.
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Removing:

• Switch off all electrical consumers, switch off ignition key and remove ignition key.
• Remove rear luggage compartment side panel trim (left or right).

• Remove 3 nuts, arrows, and remove housing.
• Remove bulb holder.

Installing:

• Install bulb holder.
• Insert housing into body opening.
• Tighten nuts.
• Install applicable rear luggage compartment side panel trim.

Rear Light Bulb Holder Removing And Installing:
Removing:

• Disconnect electrical connector.
• Depress retainers, arrows, and remove bulb holder.

Installing:

• Install in reverse order of removal.

And the Center Mounted Brake Lamp.
High mount Brake Light Removing And Installing:
The high mount brake light is installed in the rear shelf.
Removing:

• Switch off all electrical consumers, switch off ignition key and remove ignition key.
• Disconnect electrical connector from high mount brake light.
• Remove rear shelf
• Un-clip high-mount brake light from rear shelf, arrows.
• Install in reverse order of removal.

NOTE: The bulb holder base plate contains soldered- in light emitting diodes (LEDs) that are not replaceable. In the event of LED malfunction, replace complete bulb holder.
Additional

1991 Ford F150

Vehicle Battery Positive Wire (+): Yellow
Vehicle Battery Positive Wire Location: Ignition Switch Harness
Vehicle Ignition Wire (+): Red/Light Green
Vehicle Ignition Wire Location: Ignition Switch Harness
Vehicle Second Ignition Wire (+): N/A
Vehicle Second Ignition Wire Location: N/A
Vehicle Accessory Wire (+): Gray/Yellow
Vehicle Accessory Wire Location: Ignition Switch Harness
Vehicle Second Accessory Wire (+): N/A
Vehicle Second Accessory Wire Location: N/A
Automobile Engine Starter Wire (+): Red/Light Blue
Automobile Engine Starter Wire Location: Ignition Switch Harness
Automobile Second Engine Starter Wire (-): N/A
Automobile Second Engine Starter Wire Location: N/A
Factory Anti-Theft System: None
Factory Anti-Theft System Type: None
Car Key Sense Wire (-): Black/Pink
Car Key Sense Wire Location: At Steering Column Harness
Car Neutral Safety Wire (+): N/A
Car Neutral Safety Wire Location: N/A
Car Tachometer Wire (-): Tan/Yellow
Car Tachometer Wire Location: At Ignition Switch Control Module in Driver Fender Well
Car Speed Sense Wire: Gray/Black
Car Speed Sense Wire Location: Pin #3 at PCM Mounted on the Firewall
Car Parking Lights Wire (+): Brown
Car Parking Lights Wire Location: At Headlight Switch or Driver Side Kick Panel
Car Brake Lights Wire (+): Green
Car Brake Lights Wire Location: At Brake Switch Above the Pedal
Car Reverse Lights Wire (+): Black/Pink
Car Reverse Lights Wire Location: At Switch on Transmission
Car Horn Wire (-): Blue
Car Horn Wire Location: At Steering Column Harness

Sorry friend, this is as far as i can go to tel you how to hot wire the ignition. But with the color codes you should be able to figure it out, Good luck and keep me posted.

check the fuses first,then check all the bulbs,and then check the light switch and ignition modual

It isn't a fuse. A fuse will break the circuit if it is drawing too much power. What you have is circuits that are connected by the ignition switch, that should be disconnected when the key is off. This means that the ignition switch is not operating correctly, and either needs adjustment or replacement.

Sounds like the ignition switch to me. the column should have access without pulling the wheel

This is the problem with faulty reverse light switch which is in the transmission, replace the switch it will the problem ...

Good luck....