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EVC-224 < DTC/CIRCUIT DIAGNOSIS > P3117 A/C SYSTEM P3117 A/C SYSTEM Description INFOID:0000000010120681 This DTC shows a decrease in insulation resistance of the high voltage circuit. When detecting a decrease in insulation resistance of the high voltage circuit during use of air-conditioner, VCM turns ON/OFF the electric compressor and the PTC heater to check changes in insulation resistance and identifies a decrease in insulation resistance of the air-conditioning system. DTC Logic INFOID:0000000010120682 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING • Turn power switch OFF and wait at least 90 seconds. CAUTION: During this period, never perform vehicle handling such as opening and closing of doors. If some kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the vehicle handling. • Make sure that 12V battery voltage is 11 V or more. >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE-1 With CONSULT 1. Set the vehicle as the following condition and wait at least 30 minutes. 2. Check DTC. YES >> Proceed to EVC-225, "Diagnosis Procedure" NO >> GO TO 3. 3. PERFORM DTC CONFIRMATION PROCEDURE-2 With CONSULT 1. Set the vehicle as the following condition and wait at least 30 minutes. 2. Check DTC. YES >> Proceed to EVC-225, "Diagnosis Procedure" DTC CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P3117 A/C SYSTEM When VCM detects a decrease in insulation resistance • Electric compressor Power switch READY Vehicle speed 0 km/h (0 MPH) A/C switch ON A/C set temperature Full cold Power switch READY Vehicle speed 0 km/h (0 MPH) A/C switch ON A/C set temperature Full hot |