Pre-Installation And Application Warnings; Installation; Wiring Diagram With T-Harness (Thchd3 Rev. 3+) - Directed DB3 Installation Manual

Pre-installation and application warnings

This section highlights important information for this specific firmware and will assist in pricing accordingly, as
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well as bringing awareness to any operational or vehicle limitations.
Compatibilities and Requirements
T-Harness
compatible
Vehicle Takeover
Firmware notes
Heated steering wheel: Turns on with heated seats.
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Key2GO: Mandatory to control the immobilizer override in this firmware.
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T-Harness (THCHD3 Rev. 3+):
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•All T-Harness wires not listed in the diagram are not required for the installation. Loose wires such as Siren Output and
Hood Input may need to be pulled from the tapped section of the T-harness. Refer to the "wiring diagram with T-Harness"
for more information on connections and installation instructions.
•The optional Plug & Play THCHD3 Rev. 3+ T-Harness is sold separately.
•The OBDII Diagnostic Connector features will remain the same even when the T-Harness is installed.
•All T-Harness wires not listed in the diagram are not required for the installation.
Remote Start Ready (RSR):
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•RSR installations are not compatible with vehicles equipped with a manual transmission.
•RSR is a function that enables the interface module to remote start the vehicle completely on its own
Consequently, there is no need for an aftermarket or an OEM remote starter in order to start the vehicle from a distance.
SmartStart Compatible: SmartStart is equipped with D2D, which means it can be connected to an interface module and used in
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Remote Start Ready (RSR) mode without the use of a remote starter. See "Module programming" for more information.
Unless specified otherwise, all connectors are displayed from the wire side, with the exception of the OBDII diagnostic connector
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Refer to the "Vehicle connections" following the installation diagram.
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Footnotes
[1] Hood pin: The installation of an aftermarket hood pin is only required on vehicles that are not equipped with a factory hood pin or if
not supported in data.
[2] HS CAN 2 connections: Only required when Heated Seats is selected during module flashing.
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403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
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THCHD3 Rev. 3+
Refer to the Quick Reference Guide section for more details.
Keys
1 Keys required
required for
for operation
programming
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