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BTR EFI Live DSP5 Selector Switch, Chevy (2001-04) 6.6L Duramax LB7 (Blue Wire)

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SKU: DSP5LB7

Direct-fit EFI Live DSP5 selector switch for 2001–2004 Chevy 6.6L Duramax LB7 (with Blue Wire)
Seamlessly change between up to 5 custom tunes on the fly—no reflashing required
OE-style switch and wiring for reliable, long-lasting operation
Complete kit with durable rotary switch, mounting hardware, and protective loom
Engineered for straightforward, plug-and-play installation using factory GM ECU pin positions
Designed for EFI Live DSP5-tuned LB7 Duramax trucks

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Description

The BTR EFI Live DSP5 Selector Switch is a must-have for serious Duramax enthusiasts running custom EFI Live DSP5 tuning on their 2001–2004 Chevy and GMC 6.6L LB7 trucks. With this easy-to-install, OE-style rotary switch, you can instantly toggle between up to five custom engine calibrations—with the turn of a dial, all while driving.

Engineered by seasoned American automotive electrical experts, our DSP5 switch kit includes a robust, positive-detent switch, pre-terminated wiring, mounting hardware, and protective loom for a professional-grade install. The factory-style blue wire design mates directly to the ECM's connector (signal: pin 69, ground: pin 49), ensuring optimal compatibility and trouble-free use.

Unlike generic alternatives, the BTR switch is built for reliability and strong contact throughout thousands of cycles—because your tuning should be as dependable as your truck.

DSP5 Installation Help

Pin numbers for your DSP5 Switch by model:

LB7: Blue Wire = Blue connector, pin 69; Black Wire = Blue connector, pin 49
LLY: Purple Wire = Grey connector, pin 32; Black Wire = Grey connector, pin 50
LBZ & LMM: Grey Wire = Connector 1 (larger plug), pin 46; Black Wire = Connector 1 (larger plug), pin 54

Your 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 this washer falls out inside the switch, turn the switch fully counterclockwise and place the washer back with the tab aligned in hole five. Then verify the switch moves exactly four clicks clockwise. If not, repeat the process by adjusting the washer position until proper operation is achieved.

Installation Notes:
Connect signal and ground wires to the correct ECM pins according to your truck model. Detailed installation instructions are included.

Note: Compatible only with ECMs programmed for EFI Live DSP5 switching. Confirm compatibility with your EFI Live tuning setup before ordering.