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AUTO A/C DIAGNOSIS HEATER, AIR CONDITIONING AND VENTILATION 55-16 DTC B1011, B1012: Ambient Air Temperature Sensor System CAUTION If DTC B1011 or B1012 has been set, multi-dis- . DTC SET CONDITION • DTC B1011 is set if there is a short circuit in the ambient air temperature sensor input circuit. • DTC B1012 is set if there is a defective connector connection, or if there is an open circuit in the . TECHNICAL DESCRIPTION (COMMENT) Current trouble • The A/C-ECU, the ambient air temperature sen- sor, or connector(s) or wiring between the two Past trouble • If DTC B1011 or B1012 is stored as a past trou- ble, carry out diagnosis with particular emphasis TROUBLESHOOTING HINT • Malfunction of connector. • Malfunction of the harness. • Malfunction of the ambient air temperature sen- sor. • Malfunction of the A/C-ECU. • Refer to component locations GROUP- • Refer to configuration diagrams GROUP- • Refer to circuit diagrams GROUP- AC305210 A-25 (BR) AQ CONNECTOR: A-25 25DB145A CONNECTORS: C-15, C-16 C-16 HARNESS SIDE C-16 C-15 HARNESS SIDE 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 C-23 C-15 C-23 |