Osar. 333 posts · Joined 2009. #2 · Nov 4, 2009. The 1693 code is a companion code, telling you there is another code stored. You need a scanner to read the other code. Many auto parts stores will scan for codes free of charge. Make sure you write down the code! As for the tachometer quitting, could be a crankshaft position sensor issue 1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Mini makes. 2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes in the search box and submit the search. 3. Airbag ECU Problem. My wifes Hyundai 2003 (1.1) getz has developed an airbag problem after a gear linkage replacement. The garage in question left one of the doors open for X amount of hours and run the battery flat. After a jump start, my wife began to drive the car away and the airbag light lit up on the dash. 2009 santa fe severe power loss check engine light came on. I drove to nearset repair shop Hyundai). en route home Mechanic told me he found and cleared codes P2106,P1295, P0638, C1102, and C16121. th … read more El código P1693 se activa cuando el computador del vehículo detecta un problema con el sensor de temperatura del motor o con el circuito que lo controla. Las causas más comunes del código P1693 incluyen: – Un sensor de temperatura del motor defectuoso. – Un circuito del sensor de temperatura del motor con una conexión suelta o dañada. Hyundai Codes; Trouble Code Fault Location Probable Cause; P1000 – P1099 (Fuel and air metering and auxiliary emission control) P1043: DMTL - Power Stage (Valve) P1100 – P1199 (Fuel and air metering) P1100: Manifold Absolute Pressure(MAP) Sensor – Malfunction Manifold ABSolute Pressure (MAP) Sensor Circuit Malfunction: Wiring, MAP sensor Ckp sensor signal circuit shorted to ground. Crankshaft position sensor def. Engine control module defective. P1693 is not a problem. It's called a "companion code". It just means that there was also a code present in the ECM. Whenever your truck throws a code, the P1693 companion code will show up also. Connected OBD up to the immobiliser, shown the following codes: P1693 - Transponder - intermittent P1696 - Immobilizer; incorrect key code - intermittent Cleared them to monitor if they *both* re-occur if the problem resurfaces. Done quite a bit of searching on this and other forums, and found several interesting leads: 4pwaYO.