2008 NISSAN TEANA Service Manual

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Page 2801 of 5121

NISSAN TEANA 2008 Service Manual B2581, B2582 INTAKE SENSOR
HAC-173
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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1. Disconnect intake sensor connector.
2. Turn ignition switch ON.
3. Check voltage bet

Page 2802 of 5121

NISSAN TEANA 2008 Service Manual HAC-174
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2581, B2582 INTAKE SENSOR
Is the inspection result normal?
YES >> END.
NO >> Replace intake sensor.
Te r m i n a lCondition
Resistance kΩ
Temper

Page 2803 of 5121

NISSAN TEANA 2008 Service Manual B262A, B262B, B2657, B2658 GAS SENSOR
HAC-175
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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B262A, B262B, B2657, B2658 GAS SENSOR
WITH INTELLIGENT AIR CONDITIONER SYSTE

Page 2804 of 5121

NISSAN TEANA 2008 Service Manual HAC-176
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B262A, B262B, B2657, B2658 GAS SENSOR
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-

HAC-176
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B262A, B262B, B2657, B2658 GAS SENSOR
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
164, "DTC Logic" or HAC-165, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC is displayed in the self-diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
164, "DTC Logic" or HAC-165, "DTC Logic".
Is DTC
“B262A”, “B262B”, “B2657” or “B2658” displayed?
YES >> Perform trouble diagnosis for the gas sensor. Refer to HAC-176, "WITH INTELLIGENT AIR CON-
DITIONER SYSTEM : Diagnosis Procedure".
NO >> INSPECTION END
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Diagnosis ProcedureINFOID:0000000003884754
1.ADJUST GAS SENSOR SENSITIVITY AND CLEAN SWITCH INTERLOCKING CHANGE
1. Turn ignition switch ON.
2. Adjust the gas sensor sensitivity and clean switch interlocking change. Refer to HAC-116, "
WITH INTEL-
LIGENT AIR CONDITIONER SYSTEM : Gas Sensor Sensitivity Adjustment Function (With Intelligent Air
Conditioner System)" and HAC-116, "WITH INTELLIGENT AIR CONDITIONER SYSTEM : Clean Switch
Interlocking Movement Change Function (With Intelligent Air Conditioner System)".
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK POWER SUPPLY FOR GAS SENSOR
1. Turn ignition switch OFF.
2. Disconnect gas sensor connector.
3. Turn ignition switch ON.
4. Check voltage between gas sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check power supply circuit and 10A fuse (No. 3, located in the fuse block). Refer to PG-101,
"Fuse, Connector and Terminal Arrangement".
If fuse is OK, check harness for open circuit. Repair or replace if necessary.
If fuse is NG, check harness for short circuit and replace fuse.
3.CHECK GROUND CIRCUIT FOR GAS SENSOR
1. Turn ignition switch OFF.
2. Check continuity between gas sensor harness connector and ground.
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B262A GAS SENSOR (SHORT) Gas sensor duty 10% or less
Gas sensor
A/C auto amp.
Harness and connector
(Gas sensor circuit is open, or
there is a short in the circuit) B262B GAS SENSOR (OPEN) Gas sensor duty 90% or more
B2657 GAS SENSOR CIRCUIT (SHORT) Gas sensor duty 0%
B2658 GAS SEN CIRCUIT (OPEN) Gas sensor duty 100%
(+) (−)
Vol tag e Gas sensor
—
Connector Terminal
E351 1 Ground Battery voltage

Page 2805 of 5121

NISSAN TEANA 2008 Service Manual B262A, B262B, B2657, B2658 GAS SENSOR
HAC-177
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or con

Page 2806 of 5121

NISSAN TEANA 2008 Service Manual HAC-178
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DescriptionINFOID:0000000003884756
COMPONENT DESCRIPTION
Sunload Sensor
The sunload senso

HAC-178
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DescriptionINFOID:0000000003884756
COMPONENT DESCRIPTION
Sunload Sensor
The sunload sensor (1) is located on the driver’s side speaker
grille.
It detects sunload entering through windshield by means of a
photo diode. The sensor converts the sunload into a current value
which is then input into the A/C auto amp.
Sunload Sensor Circuit
SUNLOAD INPUT PROCESS
The A/C auto amp. also equips a processing circuit which averages the variations in detected sunload over a
period of time. This prevents drastic swings in the air temperature control system operation due to small or
quick variations in detected sunload.
For example, consider driving along a road bordered by an occasional group of large trees. The sunload
detected by the sunload sensor varies whenever the trees obstruct the sunlight. The processing circuit aver-
ages the detected sunload over a period of time, so that the (insignificant) effect of the trees momentarily
obstructing the sunlight does not cause any change in the air temperature control system operation. On the
other hand, shortly after entering a long tunnel, the system recognizes the change in sunload, and the system
reacts accordingly.
DTC LogicINFOID:0000000003884757
DTC DETECTION LOGIC
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
164, "DTC Logic" or HAC-165, "DTC Logic".
Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, light the sunload sensor with a lamp (60 W or more).
JPIIA0904ZZ
JPIIA0615GB
DTCItems
(CONSULT-III screen
terms)Diagnostic item is detected when... Possible cause
B2630 SUNLOAD SEN (SHORT)Detected calorie at sunload sensor 64.7 W/m
2
(30 kcal/m2·h) or less Sunload sensor
A/C auto amp.
Harness and connector
(Sunload sensor circuit is open, or
there is a short in the circuit) B2631 SUNLOAD SEN (OPEN)Detected calorie at sunload sensor 2832 W/m
2
(1304 kcal/m2·h) or more

Page 2807 of 5121

NISSAN TEANA 2008 Service Manual B2630, B2631 SUNLOAD SENSOR
HAC-179
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DTC CONFIRMATION PROCEDURE
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Usin

B2630, B2631 SUNLOAD SENSOR
HAC-179
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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DTC CONFIRMATION PROCEDURE
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC is displayed in the self-diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
164, "DTC Logic" or HAC-165, "DTC Logic".
Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, light the sunload sensor with a lamp (60 W or more).
Is DTC
“B2630” or “B2631” displayed?
YES >> Perform trouble diagnosis for the sunload sensor. Refer to HAC-179, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003884758
1.CHECK VOLTAGE BETWEEN SUNLOAD SENSOR AND GROUND
1. Disconnect sunload sensor connector.
2. Turn ignition switch ON.
3. Check voltage between sunload sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between sunload sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK SUNLOAD SENSOR
1. Reconnect sunload sensor connector and A/C auto amp. connector.
2. Check sunload sensor. Refer to HAC-180, "
Component Inspection".
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Replace sunload sensor.
4.CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between sunload sensor harness connector and A/C auto amp. harness connector.
(+) (−)
Vo l ta g e Sunload sensor
—
Connector Terminal
M74 1 Ground Approx. 5 V
Sunload sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M74 2 M50 37 Existed

Page 2808 of 5121

NISSAN TEANA 2008 Service Manual HAC-180
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2630, B2631 SUNLOAD SENSOR
4. Check continuity between sunload sensor harness connector and ground.
Is the inspection result normal?
YES >> Replac

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