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933.HONDA9 2.10.198.12 2018 Honda Civic (Smart Key)
©2023 Directed. All rights
Pre-installation and application warnings
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This section highlights important information for this specific firmware and will assist in pricing accordingly, as
well as bringing awareness to any operational or vehicle limitations.
Compatibilities and Requirements
T-Harness
compatible
THHON7
AUX
Keys
required for
programming
1
Keys required
for operation
0
Vehicle Takeover
Refer to the Quick Reference Guide section for more details.
Firmware notes
IMPORTANT: Do NOT turn vehicle ignition ON with ANY vehicle connectors disconnected, including during module
programming. Failure to do so may result with errors in the instrument cluster or hidden error messages.
The optional Plug & Play THHON7 T-Harnesses are sold separately.
T-Harness: 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.
Key2GO may be required if the interface does not program using the traditional method. Refer to the "Module programming" section
for more information.
Fuse positioning: It is important to check that the fuses are positioned correctly in the module. Proper fuse positioning is displayed on
each wiring diagram.
All connectors are displayed from the wire side (unless specified otherwise).
Refer to the "Vehicle connections" following the installation diagram.
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
not supported in data.
[2] Siren: The siren is only required when enabling the security features during module flashing.
[3] Steering Lock: The steering lock connection is ONLY required if the connector is present in the vehicle.
[4] Starter disable: For Security only installations, refer to the "Optional starter disable connection" section.
[5] Relay: When using an external relay, use a 1N4002 diode or larger. Directed Part No. 8616 Mini Relays must be used for this
connection. Refer to the "8616 wire and color reference" on the installation diagram.
[6] HS CAN 1 connections: Only required for Smart Start. If the specified pins are empty at the BCM, these connections can be made
at pin 6 and 14 of the OBD-Data Link Connector. Refer to www.directechs.com for more information.
[7] PTS: The PTS wire is mandatory in vehicles equipped with a manual transmission; otherwise it is only required for Pit Stop/Idle
mode shutdown.
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