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55-1 GROUP 55 HEATER, AIR CONDITIONER AND VENTILATION CONTENTS GENERAL INFORMATION . . . . . . . . SERVICE SPECIFICATIONS. . . . . . . LUBRICANTS . . . . . . . . . . . . . . . . . . SPECIAL TOOL . . . . . . . . . . . . . . . . . TROUBLESHOOTING . . . . . . . . . . . . DIAGNOSIS TROUBLESHOOTING FLOW DIAGNOSIS FUNCTION. . . . . . . . . . . . . . . DIAGNOSIS CODE CHART . . . . . . . . . . . . DIAGNOSTIC TROUBLE CODE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Code No. B1001,B1002: Interior temperature sensor Code No. B1011,B1012: Ambient temperature sensor Code No. B1021,B1022: Air thermo sensor system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Code No. B1041,B1042: Potentiometer system for the front air mix damper <LHD> . . . . . . . . . . . . Code No. B1041,B1042: Potentiometer system for the air mix damper <RHD> . . . . . . . . . . . . . . . . Code No.B1045: Motor drive system for the front air mix Code No. B1051,B1052: Potentiometer system for rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Code No. B1051,B1052: Potentiometer system for rear Code No.B1055 Motor drive system for rear air mix damper <vehicles with dual automatic A/C> Code No. B1061,B1062: Potentiometer system for air outlet changeover damper <LHD> . . . . . . . Code No. B1061,B1062: Potentiometer system for air outlet changeover damper <RHD> . . . . . . . Code No. B1065: Motor drive system for air outlet switching damper. . . . . . . . . . . . . . . . . . . . . Code No.U1073 Bus off error . . . . . . . . . . . Code No.U1100: Engine CAN communication time-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Code No.U1109: ETACS related CAN communication Code No.U1113 Multi-centre display CAN communication time-out . . . . . . . . . . . . . . . Code No.U1120 Engine-related CAN communication failure information . . . . . . . . . . . . . . . . . . . . TROUBLE SYMPTOM CHART . . . . . . . . . . SYMPTOM PROCEDURES . . . . . . . . . . . . INSPECTION PROCEDURE 1: Communication with the MUT-III is not possible. . . . . . . . . . . . . . INSPECTION PROCEDURE 2: Cool air does not come . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSPECTION PROCEDURE 3: The front blower does not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . INSPECTION PROCEDURE 4: The blower air volume cannot be changed . . . . . . . . . . . . . . . . . . . INSPECTION PROCEDURE 5: The inside/outside air changeover is impossible. <LHD>. . . . . . . . INSPECTION PROCEDURE 6: The inside/outside air changeover is impossible. <RHD> . . . . . . . INSPECTION PROCEDURE 7: The compressor does not work <LHD>. . . . . . . . . . . . . . . . . . . . . . INSPECTION PROCEDURE 8: The compressor does |