Directed THTON8 Toyota Scion Std Key T-Harness 2013-2023
Toyota/Scion standard-key T-harness (high-current only)
$79.99
Overview
The Directed THTON8 is a vehicle-specific T-harness for compatible Directed remote-start and security systems. Select Toyota/Scion std key vehicles, years 2013-2023. Compatible with high-current DS3P/DS4P ONLY; press noted DS4+ with TL10 for some coverage —this listing follows the high-current DS3P/DS4P-only restriction. Confirm exact vehicle coverage in Directechs before purchase. Professional installation is recommended.
Product details
Vehicle-specific T-harness
The Directed THTON8 is a vehicle-specific integration T-harness intended to speed remote-start and security installs by mating OEM-style connectors to compatible Directed control modules. It is designed to reduce cutting and splicing versus a fully hardwired install when the vehicle and harness revision match.

Fitment and system compatibility
Select Toyota/Scion std key vehicles, years 2013-2023. Compatible with high-current DS3P/DS4P ONLY; press noted DS4+ with TL10 for some coverage —this listing follows the high-current DS3P/DS4P-only restriction. Always confirm the exact vehicle, ignition type, and harness revision in the Directechs vehicle configuration guide before ordering or installing. Coverage lists change as Directed revises harnesses.

Install notes
This harness is not a remote-start system by itself. Pair it with a compatible Directed module (and any required firmware flash). Professional installation is recommended.
Key features
- Directed THTON8 vehicle-specific integration T-harness
- OEM-style connectors designed to reduce cutting and splicing
- Speeds installation of compatible Directed remote-start / security systems
- Fitment summary: Select Toyota/Scion std key vehicles, years 2013-2023
- Compatibility note: high-current DS3P/DS4P only
- System compatibility: Compatible with high-current DS3P/DS4P ONLY; press noted DS4+ with TL10 for some coverage —this listing follows the high-current DS3P/DS4P-only restriction
- Confirm exact year, trim, ignition type, and firmware in Directechs before install
- Professional installation recommended
Specifications
| Weight | 1.0 lbs |
|---|---|
| Dimensions | 12.0 × 4.5 × 3.0 in |
| Brand | Directed |
| Model | THTON8 |
| SKU | THTON8 |
| UPC | 093207104626 |
| Product type | Vehicle-specific T-harness |
| Fitment summary | Select Toyota/Scion std key vehicles, years 2013-2023 |
| System compatibility | Compatible with high-current DS3P/DS4P ONLY; press noted DS4+ with TL10 for some coverage — this listing follows the high-current-only restriction |
| High-current only | Yes |
| Install | Professional recommended |
Important notes
- Compatible with high-current DS3P/DS4P only—not for low-current DS3/DS4 systems.
- Vehicle fitment varies by year, trim, key type, and factory options — always verify in Directechs vehicle guide before purchase/install.
- Not a standalone remote-start system; requires a compatible Directed control module.
What's in the box
- Directed THTON8 T-harness
- Install documentation (when included by Directed)

