Directed THTON9 Toyota Scion Std Key T-Harness 2005-2021

Vehicle-specific T-harness

The Directed THTON9 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 2005-2021. Compatible with high-current DS3P/DS4P ONLY. 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.

• Directed THTON9 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 2005-2021
• Compatibility note: high-current DS3P/DS4P only
• System compatibility: Compatible with high-current DS3P/DS4P ONLY
• Confirm exact year, trim, ignition type, and firmware in Directechs before install
• Professional installation recommended

• 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.

• Directed THTON9 T-harness
• Install documentation (when included by Directed)

• Directed product / T-harness source
• Directechs vehicle configuration guide