2001 INFINITI QX4 Factory Service Manual

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Page 1873 of 2395

INFINITI QX4 2001 Factory Service Manual SHA967EE RHA868H Check body ground circuit for auto amp. with ignition switch OFF. Check for continuity between terminal Nos. 32, 14 and body ground. Ohmmeter terminal Continuity (+) (þ) 32 Body grou

Page 1874 of 2395

INFINITI QX4 2001 Factory Service Manual Mode Door Motor TROUBLE DIAGNOSIS PROCEDURE FOR MODE DOOR MOTOR (LAN)=NBHA0090SYMPTOM: IAir outlet does not change. IMode door motor does not operate normally. Inspection FlowNBHA0090S01Without Naviga

Page 1875 of 2395

INFINITI QX4 2001 Factory Service Manual With Navigation SystemNBHA0090S0102 RHA869H *1: HA-25 *2: HA-66 *3: HA-44 *4: HA-45 *5: HA-129*6: HA-132 *7: HA-135 *8: HA-141 *9: STEP-BY-STEP PROCEDURE (HA-45), see No. 13.*10: HA-78 *11: HA-81 *12:

Page 1876 of 2395

INFINITI QX4 2001 Factory Service Manual SYSTEM DESCRIPTION=NBHA0052Component PartsNBHA0052S01Mode door control system components are: 1) Auto amp. 2) Mode door motor (LCU) 3) In-vehicle sensor 4) Ambient sensor 5) Sunload sensor 6) Intake s

Page 1877 of 2395

INFINITI QX4 2001 Factory Service Manual Mode Door Control SpecificationNBHA0052S03 RHA135G RHA505G COMPONENT DESCRIPTIONNBHA0053The mode door motor is attached to the heater unit. It rotates so that air is discharged from the outlet set by

Page 1878 of 2395

INFINITI QX4 2001 Factory Service Manual 1 CHECK POWER SUPPLY FOR AUTO AMP. (LCU) SIDE Do approx. 12 volts exist between auto amp. (LCU) harness terminal No. 21 and body ground? RHA819H NOTE: If the result is NG or No after checking circuit

Page 1879 of 2395

INFINITI QX4 2001 Factory Service Manual 3 CHECK POWER SUPPLY FOR MOTOR SIDE Do approx. 12 volts exist between door motor (LCU) harness terminal No. 21 and body ground? RHA489GC YesorNo Ye s©GO TO 4. No©Repair harness or connector. 4 CHECK

Page 1880 of 2395

INFINITI QX4 2001 Factory Service Manual 6 CHECK MOTOR OPERATION Disconnect and reconnect the motor connector and confirm the motor operation. OK or NG OK (Return to operate normally)©Poor contacting the motor connector NG (Does not operate
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