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TROUBLE DIAGNOSIS ATC-55 C D E F G H I K L M A B ATC Revision: 2006 July 2007 Murano Operational Check NJS000AX The purpose of the operational check is to check if the individual system operates properly. CHECKING MEMORY FUNCTION 1. Turn temperature control dial clockwise until 32 ° C (90 ° F) is displayed. 2. Press OFF switch. 3. Turn ignition switch OFF. 4. Turn ignition switch ON. 5. Press the AUTO switch. 6. Confirm that the set temperature remains at previous temperature. 7. Press OFF switch. If NG, go to trouble diagnosis procedure for If OK, continue the check. CHECKING BLOWER 1. Turn fan control dial clockwise. Blower should operate on low speed. The fan symbol should have one 2. Turn fan control dial clockwise again, and continue checking blower speed and fan symbol until all speeds 3. Leave blower on max. speed. If NG, go to trouble diagnosis procedure for ATC-72, "Blower Motor Circuit" . If OK, continue the check. CHECKING DISCHARGE AIR 1. Press MODE switch and DEF switch. 2. Each position indicator should change shape. 3. Confirm that discharge air comes out according to the air distri- If NG, go to trouble diagnosis procedure for . If OK, continue the check. NOTE: CHECKING INTAKE AIR 1. Press recirculation (REC) switch. Recirculation indicator should illuminate. 2. Press fresh (FRE) switch. Fresh indicator should illuminate. 3. Listen for intake door position change. (Slight change of blower sound can be heard.) If NG, go to trouble diagnosis procedure for ATC-69, "Intake Door Motor Circuit" . If OK, continue the check. NOTE: CHECKING TEMPERATURE DECREASE 1. Turn temperature control dial (driver side) counterclockwise until 18 ° C (60 ° F) is displayed. 2. Check for cold air at discharge air outlets. If NG, go to trouble diagnosis procedure for ATC-83, "Insufficient Cooling" . If OK, continue the check. Conditions : Engine running at normal operating temperature RJIA3995E |