Nissan Altima 2007-2012 Service Manual: In-vehicle sensor
Component Description
In-vehicle sensor
The in-vehicle sensor (1) is located on instrument lower panel LH. It converts variations in temperature of compartment air drawn from the aspirator into a resistance value. It is then input into the front air control.
Aspirator
The aspirator (1) is located on LH side of heater and cooling unit. It produces vacuum pressure due to air discharged from the heater and cooling unit, continuously taking compartment air in the aspirator.
Diagnosis Procedure
DIAGNOSTIC PROCEDURE
SYMPTOM: In-vehicle sensor circuit is open or shorted.
1.CHECK VOLTAGE BETWEEN IN-VEHICLE SENSOR HARNESS CONNECTOR AND BODY GROUND
1. Disconnect in-vehicle sensor connector M34.
2. Press ignition switch ON.
3. Check voltage between in-vehicle sensor harness connector M34 terminal 1 and ground.
Is the inspection result normal? YES >> GO TO 2
NO >> GO TO 4
2.CHECK IN-VEHICLE SENSOR GROUND CIRCUIT BETWEEN IN-VEHICLE SENSOR AND FRONT AIR CONTROL
1. Press ignition switch OFF.
2. Disconnect front air control connector M37.
3. Check continuity between front air control harness connector M37 (A) terminal 26 and in-vehicle sensor harness connector M34 (B) terminal 2.
If OK, check harness for short.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK IN-VEHICLE SENSOR
Check in-vehicle sensor. Refer to HAC-55, "Component Inspection".
Is the inspection result normal? YES >> 1. Replace front air control. Refer to VTL-8, "Removal and Installation".
2. Confirm system operation.
NO >> 1. Replace in-vehicle sensor. Refer to VTL-9, "Removal and Installation".
2. Confirm system operation.
4.CHECK IN-VEHICLE SENSOR CIRCUIT BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1. Press ignition switch OFF.
2. Disconnect front air control connector M37.
3. Check continuity between front air control harness connector M37 (A) terminal 27 and in-vehicle sensor harness connector M34 (B) terminal 1.
If OK, check harness for short.
Is the inspection result normal? YES >> 1. Replace front air control. Refer to VTL-8, "Removal and Installation".
2. Confirm system operation.
NO >> Repair harness or connector.
Component Inspection
In-vehicle Sensor
After disconnecting in-vehicle sensor connector M34, measure resistance between terminals 1 and 2 at sensor side, using the table below.
If NG, replace in-vehicle sensor. Refer to VTL-9, "Removal and Installation".
Ambient sensor
Description
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor (1) is attached on the front bumper reinforcement.
It detects ambient temperature and converts it into a resistance
value wh ...
Sunload sensor
Description
COMPONENT DESCRIPTION
The sunload sensor (1) is located on the LH tweeter grille. It detects
sunload entering through windshield by means of a photo diode. The
sensor converts the sunl ...
Other materials:
Rear rh side power window alone
does not operate
Diagnosis Procedure
1. CHECK REAR POWER WINDOW SWITCH RH
Check rear power winodw switch RH.
Refer to PWC-110, "REAR POWER WINDOW SWITCH : Component Function Check".
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning parts.
2. C ...
P0102, p0103 maf sensor
Description
The mass air flow sensor (1) is placed in the stream of intake air. It
measures the intake flow rate by measuring a part of the entire
intake flow. The mass air flow sensor controls the temperature of the
hot wire to a certain amount. The heat generated by the hot wire is
reduced a ...
Audio operation precautions
Compact disc (CD) player
CAUTION
● Do not force a compact disc into the CD
insert slot. This could damage the CD
and/or CD player.
● Trying to load a CD with the CD door
closed could damage the CD and/or CD
player.
● Only one CD can be loaded into the CD
player at a time ...