Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P1693 Hyundai code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The vehicle immobilizer system consists of the Engine Control Module (ECM), the SMARTRA3, and ignition keys with a built-in transponder. The ECM carries out the check of the ignition key by special encryption algorithm with SMARTRA3 and Transponder. With IGN On, the ECM executes the key Authentication after SMARTRA3 authentication. The Engine can be started when the key authentication is confirmed by the SMARTRA3. The Diagnostic Trouble Code (DTC) will set when a corrupted o no data is received from Transponder.
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