|
|
B257B, B257C AMBIENT SENSOR HAC-283 < DTC/CIRCUIT DIAGNOSIS > [AUTO A/C (WITHOUT HEAT PUMP)] C D E F G H J K L M A B HAC N O P B257B, B257C AMBIENT SENSOR DTC Logic INFOID:0000000010121988 DTC DETECTION LOGIC NOTE: • If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to . • If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. . DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT 1. Turn power switch ON. 2. Select “Self Diagnostic Result” of “HVAC” using CONSULT. 3. Check DTC. YES >> Refer to HAC-283, "Diagnosis Procedure" NO >> Inspection End. Diagnosis Procedure INFOID:0000000010121989 Regarding Wiring Diagram information, refer to 1. CHECK AMBIENT SENSOR VOLTAGE SIGNAL 1. Turn power switch ON. 2. Operate the automatic air conditioning system. 3. Check voltage signal between A/C auto amp. harness connector terminals. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 2. 2. CHECK AMBIENT SENSOR POWER SUPPLY DTC Items (CONSULT screen terms) DTC detection condition Possible cause B257B AMBIENT SENSOR The ambient sensor recognition temperature is °C (212°F)]. • Ambient sensor (The sensor circuit is open or short- B257C The ambient sensor recognition temperature is −42°C (−44°F)]. A/C auto amp. Test condition Voltage signal Connector + − Terminal M55 36 10 • Power switch ON erating JSIIA1665ZZ |