ignition NISSAN TEANA 2008 Service Manual

HAC-48
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
B2578, B2579 IN-VEHICLE SENSOR
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
42, "DTC Logic" or HAC-43, "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-
42, "DTC Logic" or HAC-43, "DTC Logic".
Is DTC
“B2578” or “B2579” displayed?
YES >> Perform trouble diagnosis for the in-vehicle sensor. Refer to HAC-48, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003846334
1.CHECK VOLTAGE BETWEEN IN-VEHICLE SENSOR AND GROUND
1. Disconnect in-vehicle sensor connector.
2. Turn ignition switch ON.
3. Check voltage between in-vehicle sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between in-vehicle 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 IN-VEHICLE SENSOR
Check in-vehicle sensor. Refer to HAC-49, "
Component Inspection".
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Replace in-vehicle sensor.
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B2578IN CAR SENSOR (OUT OF RANGE
[LOW])Detected temperature at in-vehicle
sensor −44°C (−47°F) or less In-vehicle sensor
 A/C auto amp.
 Harness and connector
(In-vehicle sensor circuit is open,
or there is a short in the circuit) B2579IN CAR SENSOR (OUT OF RANGE
[HI])Detected temperature at in-vehicle
sensor 100°C (212°F) or more
(+) (−)
Vol tag e In-vehicle sensor
—
Connector Terminal
M41 1 Ground Approx. 5 V
In-vehicle sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M41 2 M50 37 Existed

B2578, B2579 IN-VEHICLE SENSOR
HAC-49
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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4.CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.
4. Check continuity between in-vehicle sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000003846335
1.CHECK IN-VEHICLE SENSOR
1. Turn ignition switch OFF.
2. Disconnect in-vehicle sensor connector. Refer to VTL-25, "
Exploded View".
3. Check resistance between in-vehicle sensor terminals.
Is the inspection result normal?
YES >> END.
NO >> Replace in-vehicle sensor.
In-vehicle sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M41 1 M50 36 Existed
In-vehicle sensor
—Continuity
Connector Terminal
M41 1 Ground Not existed
Te r m i n a lCondition
Resistance kΩ
Temperature °C (°F)
12−15 (5) 12.73
−10 (14) 9.92
−5 (23) 7.80
0 (32) 6.19
5 (41) 4.95
10 (50) 3.99
15 (59) 3.24
20 (68) 2.65
25 (77) 2.19
30 (86) 1.81
35 (95) 1.51
40 (104) 1.27
45 (113) 1.07

B2581, B2582 INTAKE SENSOR
HAC-51
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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1. Disconnect intake sensor connector.
2. Turn ignition switch ON.
3. Check voltage between intake sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between intake 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 INTAKE SENSOR
Check intake sensor. Refer to HAC-51, "
Component Inspection".
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Replace intake sensor.
4.CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between intake sensor harness connector and A/C auto amp. harness connector.
4. Check continuity between intake sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000003846339
1.CHECK INTAKE SENSOR
1. Turn ignition switch OFF.
2. Disconnect intake sensor connector.
3. Check resistance between intake sensor terminals.
(+) (−)
Vo l ta g e Intake sensor
—
Connector Terminal
M42 2 Ground Approx. 5 V
Intake sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M42 1 M50 37 Existed
Intake sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M42 2 M50 16 Existed
Intake sensor
—Continuity
Connector Terminal
M42 2 Ground Not existed

HAC-54
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
B2630, B2631 SUNLOAD SENSOR
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-
42, "DTC Logic" or HAC-43, "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-54, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003846342
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-55, "
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.
(+) (−)
Vol tag 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

B2630, B2631 SUNLOAD SENSOR
HAC-55
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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4. Check continuity between sunload sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000003846343
1.CHECK SUNLOAD SENSOR
1. Turn ignition switch ON.
2. Check voltage between A/C auto amp. harness connector and ground.
NOTE:
Select a place where sunshine directly on it when checking sunload sensor.
Is the inspection result normal?
YES >> END.
NO >> Replace sunload sensor.
Sunload sensor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M74 1 M50 15 Existed
Sunload sensor
—Continuity
Connector Terminal
M74 1 Ground Not existed
(+) (−)
A/C auto amp.
—
Connector Terminal
M50 15 Ground
SHA930E

B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-57
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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Diagnosis ProcedureINFOID:0000000003846349
1.CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (DRIVER SIDE)
Check voltage between air mix door motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the harnesses or connectors.
2.CHECK SIGNAL FOR AIR MIX DOOR MOTOR (DRIVER SIDE)
Check the output waveform (LAN signal) between air mix door motor (driver side) harness connector and
ground using an oscilloscope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor (driver side) connector.
3. Check continuity between air mix door motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> Replace air mix door motor (driver side).
NO >> Repair harness or connector.
(+) (−)
Voltag e Air mix door motor (driver side)
—
Connector Terminal
M306 1 Ground Battery voltage
(+) (−)
Vo l ta g e Air mix door motor (driver side)
—
Connector Terminal
M306 3 Ground
SJIA1453J
Air mix door motor (driver side)
—Continuity
Connector Terminal
M306 2 Ground Existed

B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-59
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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Diagnosis ProcedureINFOID:0000000003846352
1.CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)
Check voltage between air mix door motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the harnesses or connectors.
2.CHECK SIGNAL FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)
Check the output waveform (LAN signal) between air mix door motor (passenger side) harness connector and
ground using an oscilloscope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor (passenger side) connector.
3. Check continuity between air mix door motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace air mix door motor (passenger side).
NO >> Repair harness or connector.
(+) (−)
Voltag e Air mix door motor (passenger side)
—
Connector Terminal
M307 1 Ground Battery voltage
(+) (−)
Vo l ta g e Air mix door motor (passenger side)
—
Connector Terminal
M307 3 Ground
SJIA1453J
Air mix door motor (passenger side)
—Continuity
Connector Terminal
M307 2 Ground Existed

HAC-62
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
3.CHECK MODE DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor connector.
3. Check continuity between mode door motor harness connector and ground.
Is the inspection result normal?
YES >> Replace mode door motor.
NO >> Repair harness or connector.
Mode door motor
—Continuity
Connector Terminal
M310 2 Ground Existed

HAC-64
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
NO >> Check intake door motor installation, and repair or replace the malfunctioning parts.
Diagnosis ProcedureINFOID:0000000003846358
1.CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR
Check voltage between intake door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SIGNAL FOR INTAKE DOOR MOTOR
Confirm A/C LAN signal between intake door motor harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK INTAKE DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake door motor connector.
3. Check continuity between intake door motor harness connector and ground.
Is the inspection result normal?
YES >> Replace intake door motor.
NO >> Repair harness or connector.
(+) (−)
Vo l ta g e Intake door motor
—
Connector Terminal
M304 1 Ground Battery voltage
(+) (−)
Voltag e Intake door motor
—
Connector Terminal
M304 3 Ground
SJIA1453J
Intake door motor
—Continuity
Connector Terminal
M304 2 Ground Existed

POWER SUPPLY AND GROUND CIRCUIT
HAC-65
< COMPONENT DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
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POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis ProcedureINFOID:0000000003941309
1.CHECK FUSE
Check 10A fuses [Nos. 3, 6 and 19, located in the fuse block (J/B)].
NOTE:
Refer to PG-101, "
Fuse, Connector and Terminal Arrangement".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the fuse after repairing the applicable circuit.
2.CHECK A/C AUTO AMP. POWER SUPPLY CIRCUIT
1. Disconnect the A/C auto amp. connector.
2. Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK A/C AUTO AMP. CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the harnesses or connectors.
A/C CONTROL
A/C CONTROL : Diagnosis ProcedureINFOID:0000000003846370
1.CHECK A/C CONTROL POWER SUPPLY CIRCUIT
1. Disconnect the A/C control connector.
2. Turn ignition switch ON.
3. Check voltage between A/C control harness connector and ground.
(+) (−) Voltage
A/C auto amp.
—Ignition switch position
Connector Terminal OFF ACC ON
M5017
GroundApprox. 0 V Battery voltage Battery voltage
20 Approx. 0 V Approx. 0 V Battery voltage
40 Battery voltage Battery voltage Battery voltage
A/C auto amp.
—Continuity
Connector Terminal
M5019
Ground Existed
39
(+) (−)
Voltage A/C control
—
Connector Terminal
M95 1 Ground Battery voltage