Nissan Altima 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:
P0705 park/neutral position switch
Description
• The PNP switch is included in the control valve assembly.
• The PNP switch includes 4 transmission position switches.
• TCM judges the selector lever position by the PNP switch signal.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive ...
B260C steering lock unit
Description
The electronic steering column lock performs the check by itself according to
the steering status.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF.
3. Press door switch ...
On-vehicle repair
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM)
Removal and Installation
REMOVAL
1. Disconnect the battery negative terminal.
2. Remove the IPDM E/R cover (1) while pressing the pawl (A) at
the rear end of the IPDM E/R cover (1).
3. Disconnect the harness connectors from the ...