BTR DSP5 Selector Switch for EFI Live, Chevy (2011-16) 6.6L Duramax LML (Yellow Wire)

The BTR DSP5 Selector Switch is the ideal add-on for Duramax owners running EFI Live DSP5 custom calibration on their 2011–2016 Chevy and GMC 6.6L LML Duramax. This SOTF rotary switch allows real-time selection of up to five custom tunes without ever shutting off or reflashing the ECM—just turn the knob and shift your truck’s performance instantly.

Each kit includes a positive-detent rotary selector, durable loom, mounting hardware, position sticker, and the correct yellow wire configuration specifically made for 2011–2016 LML ECM integration. It is engineered for long service life, dependable electrical contact, and smooth, repeatable operation no matter how often you change tunes.

DSP5 Installation Help

For LML EFI Live applications (2011–2016), the Yellow Wire setup ensures proper connection to your DSP5-enabled ECM program. Always follow your tuner’s specific pinout instructions for installation.

Switch Washer Alignment Tip

The DSP5 switch includes a nut and two washers. The bottom smooth washer must remain on the bottom with the tab located in hole number five. If it slips out:

• Turn the switch fully counterclockwise


• Reinstall the washer with its tab in hole five


• Verify the switch moves exactly four clicks clockwise


• If incorrect, reset and try again until proper four-click operation is achieved

This alignment ensures each switch position precisely matches your tune selection.