BT DieselWorks AutoSync Installation Manual

2014-2018 silverado/sierra 1500 2015-2019 silverado/sierra 2500-3500 2015-2020 tahoe/yukon/suburban/escalade/denali

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BT DieselWorks AutoSync – Installation guide

Firmware v2.20 and up only (Dec. 2019+ and newer AutoSync's will already have 2.20 or higher from the factory)

Requires 'IO4' (4" screen) or 'IO5/IO6' (8" screen) radios. Does not work on 'IO3'

2014-2018 Silverado/Sierra 1500

2015-2019 Silverado/Sierra 2500-3500

2015-2020 Tahoe/Yukon/Suburban/Escalade/Denali

Thank you for purchasing the BT DieselWorks AutoSync. The AutoSync is a patent-pending revolutionary

new easy-to-install module that adds many enhanced functional and comfort features to your GM K2xx

truck or SUV. Please be sure to also follow the quick-start guide on the 'AutoSync installation guides'

page on our website. It is important to register your AutoSync and pair it to your WiFi network as soon

as possible to receive the latest firmware updates and new feature additions.

NOTE: These instructions cover AutoSync's with firmware v2.20 and up only! To check your firmware

version, access the AutoSync menu, go to page-4, and press "AutoSync info".

I know these instructions are long/boring, but PLEASE try to at least glance over every page first. 95%

of tech support email/questions we get are simply due to misunderstanding/not reading the

instructions. 

NOTE: 2017+ vehicles have several feature limitations and also require one additional minor wiring

change under the dash at the Serial Data Gateway module connector. Please see the additional 2017+

supplement document instructions on our website on how to perform this wiring change/pin swap.

NOTE: Some menu items are shown/hidden depending on whether the vehicle is in the "key on

engine off" mode, or "key on engine running". If a menu button that you are looking for seems

"missing", confirm that the vehicle is in the proper mode (engine running/not-running) first!

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Summary of Contents for BT DieselWorks AutoSync

Page 1: Introduction
SUV. Please be sure to also follow the quick-start guide on the ‘AutoSync installation guides’ page on our website. It is important to register your AutoSync and pair it to your WiFi network as soon as possible to receive the latest firmware updates and new feature additions.
Page 2: Table Of Contents
Change daytime running light settings and fog lights w/ high beams…….Page 20 Video-in-motion, auto headlight override, remote keyfob window control, radio VIN clear…….Page 21 Installing DSP/SOTF control wire, AutoSync info page/Serial number location.……Page 22 Updating your AutoSync firmware…….Page 23-26 Page | 2...
Page 3: Installation/Basic Operation
DIP switches (normally not used, covered by sticker), and a status LED. The AutoSync must remain plugged in at all times for features to work. You can use AutoSync with an OBD port splitter (to use simultaneously with another scan tool, Edge Insight, EZ Lynk, etc), however compatibility is NOT guaranteed unless you use the BT DieselWorks OBD splitter, available at our website.
Page 4 (4 times within ~4 seconds). To step “back” a menu page at any time, press the “< BACK” button on the radio controls, OR press the “” icon at the top left of the screen. To exit the AutoSync menu at any time, press the “home”...
Page 5: Efilive/Ez Lynk Sotf Tune Switching (Diesel Only), Active Fuel Management Disable (Gas Only)
Active Fuel Management disable (gas) Diesel vehicles: This ECM tune switching menu is found on AutoSync main menu, page 1. This menu allows you to control EFILive DSP or EZ Lynk SOTF tune level. Simply tap whichever tune you want to switch to, and the DSP/SOTF mode will immediately be changed.
Page 6: Strobe Lights Mode/Work Lights Mode/Reverse Spotlight Mode
2017+ vehicles, this currently only works key on, engine off. We are currently working on a fix for 2017+. Reverse Work Lights – Found on page 3 of the AutoSync main menu, ONLY visible with key on, engine NOT RUNNING. This menu item is hidden with engine running. Setting this feature to ON will make the cargo lights and tow-mirror spot lights (if equipped) come on automatically whenever you shift into reverse.
Page 7: Viewing Live Engine Data
Viewing Live Engine Data The “Powertrain Data” feature is found on page 1 of AutoSync main menu The powertrain data page displays live engine/transmission data, as shown below. Diesel PIDs include boost, EGT, coolant temp (ECT), oil pressure, current gear, torque converter clutch (TCC) locked/unlocked, DSP/SOTF tune, turbocharger vane position, actual fuel rail pressure (aFRP), desired fuel rail pressure (dFRP), main injection fuel rate, main injection timing.
Page 8 The “RECORDS” icon will display a page that shows the peak recorded values for each PID. These PID peak records are stored permanently even if the AutoSync is unplugged. To clear/reset the PID peak records, press the “ERASE” icon on the bottom of the “engine data records” page.
Page 9: Viewing Backup Camera While Moving, Turn-Signal-Activated Backup Camera
Turn-signal-activated backup camera View Rear Camera – This is found on page 2 of the AutoSync main menu. Press this icon to momentarily switch to the backup camera display. The backup camera will display for roughly 5 seconds, and then automatically return back to the AutoSync menu.
Page 10: High Idle Mode, Reading/Clearing Engine Codes (Dtcs), Securidle (Theft-Deterrent Shift Lock)
SecurIdle (theft-deterrent shifter lock, 2015-2016 only) High idle mode is found on page 2 of AutoSync main menu. When turned on, this will raise the engine to ~1200rpm. Excellent for warming up the engine in the cold, improving air conditioning performance while parked in extreme hot weather, or jump starting other vehicles.
Page 11: Torque Converter Lockup Controller (Optional Feature, And Only Available With Diesel)
Torque converter lockup controller TC Lockup Controller (optional extra-cost feature, only available with diesel/Allison transmission) – This is found on page 2 of the AutoSync main menu. This menu option is only visible/accessible with engine running. The lockup controller has two modes: automatic and manual. Automatic mode will automatically immediately force lock the torque converter whenever the accelerator pedal is greater than 95%, vehicle speed is above 30mph, and engine speed is over 1900rpm.
Page 12: Diesel Particulate Filter Force-Regen
DPF regen on its own. NOTE: If the truck is running in park, when you click the “DPF force regen” button on Main-Menu-Page-3, the AutoSync will command a “service/stationary DPF regen”. If the truck is NOT in park, the AutoSync will command a “mobile/driving”...
Page 13: Launch Control (Optional Feature)
Launch control Launch control (optional feature) – This feature can be found on page 3 of the AutoSync main menu. This menu option is only visible with the engine running. This exclusive feature uses the ABS module to act as a ‘smart’ line-lock/automatic launch control feature.
Page 14: Transmission Relearn Functions (Only Available With Diesel)
Transmission learn functions (Diesel/Allison transmission only) Transmission Learn Functions – This function is found on AutoSync main menu page 3. Allison transmission TAPS reset and Allison transmission fast learn procedure functions. TAPS reset clears the adaptive shifting values, and fast learn performs a complete clutch fill and release timing/volume learn procedure.
Page 15: Viewing Live Vehicle Dynamics Data (G-Forces, Etc)
Vehicle Dynamics Info Vehicle Dynamics Info – This page is found on AutoSync main menu page 3. It displays live chassis- dynamics data from the stability control and traction control systems. Vehicle dynamics PIDs include: Longitudinal acceleration (forward/backward Y-axis G-force), Lateral acceleration (side-to-side X-axis G- force).
Page 16: Reprogram Tpms Warning Threshold Or Disable Tpms
NOTE: when the AutoSync is set to disable TPMS, the truck will still chime and display a temporary “TPMS DISABLED” message on the radio/navigation screen after startup. This is simply to warn the driver that TPMS has been disabled by AutoSync.
Page 17: Learn New Remote Keyfobs
New keyfobs can be easily purchased online, and then learned using the AutoSync. No need to visit the dealer! Each vehicle can learn a total of 8 keyfobs. Press the “LEARN” icon and follow the on-screen instructions.
Page 18: Fuel System Tests (Only Available With Diesel)
Fuel System Tests (diesel only) Fuel System Tests– This feature is found on AutoSync main menu, page 4. This menu is only accessible/visible with the engine running, and with the transmission in Park. The menu item is hidden with engine off, and locked out when transmission is in drive.
Page 19: 0-60Mph Performance Timer
60mph, the status will show “COMPLETE”, and the 0-60mph time will be displayed on the screen. The AutoSync will automatically store the fastest time, and this time will be saved even if the AutoSync is unplugged. If a faster 0-60mph time is accomplished, the AutoSync will automatically update the saved “Best time”.
Page 20: Change Daytime Running Light Settings And Fog Lights W/ High Beams
“ALS Invalid!”. When there is a problem with the truck’s ALS, the AutoSync will disable its DRL features as a safety precaution. NOTE: your truck’s ALS wiring and all other BCM wiring MUST BE STOCK!!!! DO NOT WIRE IN ANY RESISTORS OR “ALL 6 ON HIGH”...
Page 21: Video-In-Motion, Auto Headlight Override, Remote Keyfob Window Control, Radio Vin Clear
YOURSELF AND INNOCENT BYSTANDERS!!!! Radio / HMI VIN clear – AutoSync has the ability to clear and reset the VIN lock on both radios and HMI modules. This is useful if you are swapping/replacing HMI modules or radios. The dealer cannot clear the VIN on these modules, this is an AutoSync-exclusive! When a new radio or HMI module is installed, the radio screen will be black with a “theftlock”...
Page 22: Installing Dsp/Sotf Control Wire, Autosync Info Page/Serial Number Location
-Cut the “SIGNAL” wire going to your existing rotary DSP/SOTF knob switch. Usually this wire color is purple or yellow, and goes to Pin 11 on the gray ECM “C3” connector. Splice the AutoSync DSP/SOTF wire to the DSP/SOTF signal wire that you just cut. The ground (usually black) wire going to the old rotary switch can be cut/taped off/removed.
Page 23: Updating Your Autosync Firmware
NOTE: Be sure that your truck is parked within range of your WiFi router, or inside a garage with WiFi access. Leave all of the vehicles doors OPEN to ensure that the AutoSync can pick up a good WiFi signal. If the update procedure fails, or “hangs” more than 3-4 times, the WiFi signal is probably too weak, and you must use the “offboard”...
Page 24 “Service Stabilitrak” message when the AutoSync reboots, this is normal. Turn the ignition OFF and open the door to turn off the radio, etc. Unplug the AutoSync for 5 seconds, then plug back in. You can go back into the AutoSync info page to confirm that the firmware version has been updated/changed.
Page 25 BCM tuning in addition to the latest AutoSync firmware. 2. Press and hold the “A” button on the AutoSync. (the button closest to the OBD connector) 3. While still holding the “A” button, plug the AutoSync into USB power. The LED will turn GREEN indicating that the AutoSync is on offboard programming mode.
Page 26 10. If the LED flashes BLUE, right away after connecting to your WiFi network, that indicates AutoSync is currently already up to date with the latest firmware installed. 11. If the LED flashes RED, that means the firmware update has failed. Double check your WiFi settings, check that your internet connection and WiFi router are working correctly, unplug the AutoSync and try again.