I am taking a bit of a guess because I don't have information on such a late vehicle but I think it is a fair bet Diahatsu are using embedded transponder chips in the keys with a steering lock/ignition switch mounted receiver.
That was a popular trend among manufacturers and was the system employed by Diahatsu in their earlier models with a master key and up to three slave keys. They are more likely I think to leave the basic system as it is and just add a remote locking system than to develop an entiely new system at unnecessarily high cost.
They could have cribbed a system from another manufacturer of course...
The Ford PAT system was just about identical and gave little trouble and they bridged the gap by fitting remote locking and providing a remote.
The Renault system was similar but many models were very troublesome as they aged and the immobiliser was soon updated and was integrated with the key "plip"
Both these manufacturers use a dashboard mounted light to indicate whether the immobiliser had been successfully disengaged but I have no information about the Diahatsu other than a note dedicated diagnostic equipment is required for key coding.
I am sorry this hasn't been much help.
Look at the back of the vehicle, how many clear colored plastic lens do you see? Those are he reverse light(s) There may be one in the center or one in each side
Check the wires that go to the fuel sender (at the tank) one is corroded, or loose.. or worst case the fuel sender has died.Very very rarely does the actual guage break...
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AutoGuruhttps://www.autoguru.com.au > ... > Daihatsu > Terios
When do Daihatsu Terios transmission speed sensors need to be replaced? The transmission speed sensor, sometimes called a vehicle speed sensor (VSS) is ...
Missing: 2004 Input turbine
YourMechanichttps://www.yourmechanic.com > Articles
P0715 means the transmission will not be able to read the engine RPMs to shift properly causing transmission to shift hard or erratic.
Missing: Daihatsu Terios.
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Hello,Got a book to your vehicle? Sounds like a sensor or switch either on the engine or transmission. In your book look at any switch or sensor associated with the 1706 code. Usually, when a code is thrown the code is meant to narrow down possible problems. Sometimes in the code reader book there will be some given parts associated with a specific code. However, to me--this sounds like a transmission shift module or throttle rpm communication problem.I hope this helps.