Nissan Altima (L32) 2007-2012 Service Manual: Intake sensor
Description
Intake Sensor
The intake sensor is located on the heater and cooling unit. It converts temperature of air after it passes through the evaporator into a resistance value which is then input to the front air control.
Diagnosis Procedure
SYMPTOM: Intake sensor circuit is open or shorted.
1.CHECK VOLTAGE BETWEEN INTAKE SENSOR HARNESS CONNECTOR AND BODY GROUND
1. Disconnect intake sensor connector M69.
2. Press ignition switch ON.
3. Check voltage between intake sensor connector M69 terminal 1 and ground.
Is the inspection result normal? YES >> GO TO 2
NO >> GO TO 4
2.CHECK INTAKE SENSOR GROUND CIRCUIT BETWEEN INTAKE SENSOR AND FRONT AIR CONTROL
1. Press ignition switch OFF.
2. Disconnect front air control connector M37.
3. Check continuity between front air control connector M37 (A) terminal 26 and intake sensor harness connector M69 (B) terminal 4.
If OK, check harness for short.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK INTAKE SENSOR
Check intake sensor. Refer to HAC-59, "Diagnosis Procedure".
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 intake sensor. Refer to VTL-11, "Removal and Installation".
2. Confirm system operation.
4.CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND FRONT AIR CONTROL
1. Press ignition switch OFF.
2. Disconnect front air control connector M37.
3. Check continuity between front air control connector M37 (A) terminal 25 and intake sensor harness connector M69 (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
Intake Sensor
After disconnecting intake sensor harness connector, measure resistance between terminals 1 and 2 at sensor harness side, using the table below.
If NG, replace intake sensor. Refer to VTL-11, "Removal and Installation".
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 ...
Power supply and ground circuit for front air control
Description
COMPONENT DESCRIPTION
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. ...
Other materials:
Precaution
Supplemental Restraint System SRS "AIR BAG"
and "SEAT BELT PRE-TENSIONER" Service
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and ...
Removal and installation
FRONT SUSPENSION ASSEMBLY
Exploded View
1. Strut tower bar
2. Stabilizer bar
3. Stabilizer clamp
4. Stabilizer bushing
5. Connecting rod
6. VQ35DE front mount bracket
7. VQ35DE rear mount bracket
8. QR25DE mount bracket
9. Member pin stay
10. Transverse link
11. Steering stop plate
...
P2122, P2123 APP sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which tr ...
