SDHQ SDHQ-53-1140-G3 User manual

Latest Revision: 11/5/2019
For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
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Product Packing List
Product: SDHQ-53-1140-G3
Description: 14-20 Tundra Switch Pros Power Module
Mount
(1) SDHQ Power Module Mount Plate SDHQ-53-1140-G3-A
(1) Hardware Package SDHQ-53-1140-G3-B
(2) ¼” – 20 x ¾” S.S. Button Head Bolts
(2) ¼” S.S. Flat Washers
(2) ¼” – 20 x 17/32” Clip-on Barrel Nuts
Inspected and Packaged By: Date:

For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
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For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
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INSTALLATION INSTRUCTIONS
Product: SDHQ-53-1140-G3
Description: 14-20 Tundra Switch Pros Power Module
Mount
Tech Notes
Use anti-seize on all stainless steel hardware.
Make sure terminal crimps are tight to avoid damage and fire hazard.
When installing the Power Module Mount, it may be easier to remove the battery.
*Optional Relay Pack Upgrade is purchased separately.
**Approx install time = 1 hour (not including wiring)**
Parts List
Hardware List
Required Tools
Standard Mounting Kit:
(1) SDHQ Power Module Mount Plate
SDHQ-53-1140-G3-A
(1) Mounting Plate Hardware Package
SDHQ-53-1140-G3-B
Optional Relay Pack Upgrade*:
(1) Sealed Relay Module Package
SDHQ-02-1141-U1
Mounting Plate Hardware Package:
SDHQ-53-1140-G3-B
(2) ¼” - 20 x ¾” S.S. Button Head Bolts
(2) ¼” S.S. Flat Washers
(2) ¼”-20 Clip-on Barrel Nuts
1/8” Allen Wrench
4mm Allen Wrench
Open Barrel Crimping Tool
Wire Strippers
10mm socket and ratchet
Flat head screw driver

For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
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***READ ALL INSTRUCTIONS THOROUGHLY FROM START TO FINISH BEFORE BEGINNING INSTALLATION! ***
Installation Instructions:
1. Place the Switch Pros Power Module on top of the SDHQ Switch Pros Power Module Mount
as pictured. Using the Switch Pros included hardware, bolt the Power Module to the Mount.
2. It is not completely necessary, but removing the battery may help with ease of installation. On
your core support, locate the two holes circled below from inside the engine bay.

For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
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3. Place the (2) Clip on Barrel Nuts over those holes with the threaded ended pointing towards
the front of the truck.
4. Place the Switch Pros Power Module and Mount over the Barrel Nuts and bolt into place with
the ¼” - 20 x ¾” bolts and ¼” washers as pictured. The Power Module can now be wired up.
Wiring:
Once the Switch-Pros power module is mounted, but BEFORE it is connected to anything else, do
the following:
1. Reinstall battery (if battery was removed during installation), and secure factory connections.
Start vehicle and confirm that battery is properly installed, connected and grounded.
2. Connect the Switch-Pros Ground wire lug to the negative terminal on the battery (grounding
elsewhere will not properly filter noise and will void your product warranty).
3. Plug the 16-pin harness into the power module; be sure it locks in.
4. Connect the red Battery Cable to the positive terminal on the battery. Tighten down both ends,
to prevent lug from rotating and possibly causing friction or spark.

For questions or help with the installation, please call SDHQ Offroad @ 480-633-2929
Mon.–Fri. 8:00am–5:30pm and Sat. 8:00am–3:30pm Arizona Time. www.sdhqoffroad.com
Page 6of 6
***Double check all hardware is installed correctly and tight***
***Re-torque ALL bolts after 100 miles***
190 S McQueen Rd
Ste 109 Gilbert, AZ 85233
Phone: [phone] | Fax: [phone]
www.sdhqoffroad.com
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