2001 INFINITI QX4 Factory Service Manual

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Page 1929 of 2395

INFINITI QX4 2001 Factory Service Manual RHA051GE DIAGNOSTIC PROCEDURENBHA0041SYMPTOM: Ambient sensor circuit is open or shorted. (or þ is indicated on the display as a result of conducting Self- diagnosis STEP 2.) 1 CHECK VOLTAGE BETWEEN A

Page 1930 of 2395

INFINITI QX4 2001 Factory Service Manual 3 CHECK AMBIENT SENSOR Refer to HA-131. OK or NG OK©1. Replace auto amp. (LCU). 2. Go to self-diagnosis step-by-step procedure (HA-45) and perform self-diagnosis STEP 2. Confirm that code No. 20 is d

Page 1931 of 2395

INFINITI QX4 2001 Factory Service Manual Temperature ÉC (ÉF) Resistance kW 35 (95) 1.51 40 (104) 1.27 45 (113) 1.07 If NG, replace ambient sensor. RHA103G In-vehicle Sensor Circuit COMPONENT DESCRIPTIONNBHA0043In-vehicle sensorNBHA0043S01T

Page 1932 of 2395

INFINITI QX4 2001 Factory Service Manual 1 CHECK IN-VEHICLE SENSOR CIRCUIT BETWEEN IN-VEHICLE SENSOR AND BODY GROUND Disconnect in-vehicle sensor harness connector. Do approx. 5 volts exist between in-vehicle sensor harness terminal No. 1 an

Page 1933 of 2395

INFINITI QX4 2001 Factory Service Manual 3 CHECK IN-VEHICLE SENSOR Refer to HA-135. OK or NG OK©1. Replace auto amp. 2. Go to self-diagnosis step-by-step procedure (HA-45) and perform self-diagnosis STEP 2. Confirm that code No. 20 is displ

Page 1934 of 2395

INFINITI QX4 2001 Factory Service Manual RHA060GB COMPONENT INSPECTIONNBHA0045In-vehicle SensorNBHA0045S01After disconnecting in-vehicle sensor harness connector, measure resistance between terminals 1 and 2 at sensor harness side, using the

Page 1935 of 2395

INFINITI QX4 2001 Factory Service Manual obstructing the sunlight does not cause any change in the ATC system operation. On the other hand, shortly after entering a long tunnel, the system will recognize the change in sunload, and the system

Page 1936 of 2395

INFINITI QX4 2001 Factory Service Manual 2 CHECK SUNLOAD SENSOR CIRCUIT BETWEEN SUNLOAD SENSOR AND AUTO AMP. (LCU) 1. Disconnect auto amp. (LCU) harness connector. 2. Check circuit continuity between sunload sensor harness terminal No. 2 and
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