Location of Stop Light Switch Wire on 2016 Mercedes-Benz Sprinter 3500 to Install Prodigy P2

Updated 05/03/2024 | Published 01/25/2017

Question:

Can you tell me where the wire is? it does not have any in under the seat. I need the wire to hook up my brake controller so it works when you step on the brake pedel

asked by: Dale

Expert Reply:

To install the Tekonsha Prodigy P2 Electric Brake Controller # 90885 in your 2016 Mercedes-Benz Sprinter 3500 you'll need to connect the red wire from the P2 to the cold side of the Sprinter's stop light switch. This will be the wire that only shows power when the brake pedal is being pressed. The wire you're looking for is usually a pink wire with a green stripe that is located above the brake pedal under the van's dashboard. Take a look at the video I linked and skip ahead to about the 17 minute mark.

expert reply by: Charles S

Marty S.

3/30/2024

Can I install a Tekonsha part number 8508220 brake controller on my 2017, Mercedes 3500 using the pink and green wire on my brake puddle switch?

Mike L.

5/2/2024

@MartyS Does your Sprinter 3500 have the factory tow package with the 7-way trailer connector at the rear bumper?

Mike L.

5/3/2024

@MartyS Does your 2017 Sprinter 3500 have the factory tow package with the 7-way trailer connector at the rear bumper? (most do). In that case, you'll just need your brake controller and the # 3063-P wiring harness which plugs in under the driver's seat. If it does not, let me know and I'll get you some info to help with a hardwire install.

Marty S.

3/30/2024

Can I use a Tekonsha Break – EVN part number 8508220 on my Mercedes, 3500 using the pig in green wire on the brake pedal switch?