ignition NISSAN TEANA 2008 Service Manual

HAC-182
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
Diagnosis Procedure
INFOID:0000000003884762
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.
(+) (−)
Vo l ta g e Air mix door motor (driver side)
—
Connector Terminal
M306 1 Ground Battery voltage
(+) (−)
Voltag 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

HAC-184
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
Diagnosis Procedure
INFOID:0000000003884765
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.
(+) (−)
Vo l ta g e Air mix door motor (passenger side)
—
Connector Terminal
M307 1 Ground Battery voltage
(+) (−)
Voltag 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

B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-187
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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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

B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
HAC-189
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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YES >> INSPECTION END
NO >> Check intake door motor installation, and repair or replace the malfunctioning parts.
3.FUNCTION INSPECTION (WITH INTELLIGENT AIR CONDITIONER SYSTEM)
1. Press intake switch.
2. The intake switch indicator is turned ON. (REC position)
3. Listen for intake door position change (Slight change of blower sound can be heard.).
4. Press intake switch again.
5. The intake switch indicator is turned ON. (FRE position)
6. Listen for intake door position change (Slight change of blower sound can be heard.).
Does it operate normally?
YES >> INSPECTION END
NO >> Check intake door motor installation, and repair or replace the malfunctioning parts.
Diagnosis ProcedureINFOID:0000000003884771
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?
(+) (−)
Voltag e Intake door motor
—
Connector Terminal
M304 1 Ground Battery voltage
(+) (−)
Vo l ta g 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-191
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis ProcedureINFOID:0000000003941319
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.
(+) (−) 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

HAC-192
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
A/C AUTO AMP.
A/C AUTO AMP.
DescriptionINFOID:0000000003941321
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, the mode door motor, the intake
door motor, the blower motor and the compressor are then con-
trolled.
When the various switches and temperature control dial are oper-
ated, data is input to the A/C auto amp. from the A/C control.
Component Function CheckINFOID:0000000003940728
1.CHECK OPERATION
1. Press the AUTO switch, and then check that “AUTO” is shown on the display.
2. Operate the temperature control dial (driver side). Check that the fan speed or outlet changes. (The dis-
charge air temperature or fan speed varies depending on the ambient temperature, in-vehicle tempera-
ture, and temperature setting.)
Does it operate normally?
YES >> INSPECTION END
NO >> Perform trouble diagnosis for the A/C system. Refer to HAC-192, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003940729
1.INSPECTION BY FAIL-SAFE FUNCTION
1. Turn the ignition switch ON.
2. After approximately 30 seconds, check that the air conditioner is operated by the fail-safe function (the
operation display of air conditioner is not performed). Refer to HAC-211, "
WITHOUT INTELLIGENT AIR
CONDITIONER SYSTEM : Fail-Safe" (WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM) or HAC-
223, "WITH INTELLIGENT AIR CONDITIONER SYSTEM : Fail-Safe" (WITH INTELLIGENT AIR CONDI-
TIONER SYSTEM).
Is the fail-safe function operated?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK A/C AUTO AMP. POWER SUPPLY CIRCUIT AND GROUND
Check A/C auto amp. power supply circuit and ground circuit. Refer to HAC-192, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace parts according to the inspection results.
3.CHECK PRESET SWITCH
Check the preset switch. Refer to AV-164, "
Symptom Table" (BASE AUDIO AND DISPLAY SYSTEM), AV-372,
"Symptom Table" (BOSE AUDIO WITHOUT NAVIGATION) or AV-640, "Symptom Table" (BOSE AUDIO WITH
NAVIGATION).
Is the inspection result normal?
YES >> Replace the A/C auto amp.
NO >> Repair or replace parts according to the inspection results.
JPIIA0894ZZ

HAC-194
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
BLOWER MOTOR
OUT INTELLIGENT AIR CONDITIONER SYSTEM) or HAC-159, "WITH INTELLIGENT AIR CONDI-
TIONER SYSTEM : CONSULT-III Function" (WITH INTELLIGENT AIR CONDITIONER SYSTEM).
NOTE:
Perform the ACTIVE TEST after starting the engine because the compressor is operated.
2. Check that the blower motor control signal changes according to each indicator signal.
NOTE:
 Perform the inspection of each output device after starting the engine because the compressor is oper-
ated.
 When choosing to “MODE 7”, error message is displayed but it is not malfunction.
Does it operate normally?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 7.
4.CHECK BLOWER MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between blower motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair harness or connector.
5.CHECK BLOWER MOTOR CIRCUIT CONTINUITY
1. Disconnect A/C auto amp. connector.
2. Check continuity between blower motor harness connector and A/C auto amp. harness connector.
Te s t i t e m
MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7
Mode door position VENT B/L1 B/L2 AUTO FOOT D/F DEF -
Intake door position REC REC 20% FRE FRE FRE FRE -
Air mix door position
(driver & passenger
side)FULL COLD FULL COLD FULL HOT FULL HOT FULL HOT FULL HOT -
Blower motor duty ratio 37% 91% 65% 65% 65% 91% -
Compressor (Magnet
clutch)ON ON OFF OFF ON ON -
(+) (−)
Vol tag e Blower motor
—
Connector Terminal
M98 1 Ground Battery voltage
Blower motor
—Continuity
Connector Terminal
M98 3 Ground Existed

BLOWER MOTOR
HAC-195
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair harness or connector.
6.CHECK A/C AUTO AMP. OUTPUT SIGNAL
1. Reconnect blower motor connector and A/C auto amp. connector.
2. Turn ignition switch ON.
3. Set MODE switch to the VENT position.
4. Check the output waveform between blower motor harness connector and ground using an oscilloscope,
while varying the fan speed from 1 to 7.
Is the inspection result normal?
YES >> Replace the blower motor.
NO >> Replace the A/C auto amp.
7.CHECK POWER VOLTAGE OF BLOWER RELAY
1. Turn the ignition switch OFF.
2. Remove the blower relay. Refer to PG-101, "
Fuse, Connector and Terminal Arrangement".
3. Turn the ignition switch ON.
4. Check the voltage between blower relay fuse block side terminal and ground. Refer to PG-101, "
Fuse,
Connector and Terminal Arrangement" for relay terminal assignment.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Inspection the power supply circuit. Refer to PG-55, "
Wiring Diagram - IGNITION POWER SUP-
PLY -".
8.CHECK BLOWER RELAY
1. Turn the ignition switch OFF.
2. Install the blower relay. Refer to PG-101, "
Fuse, Connector and Terminal Arrangement".
3. Turn the ignition switch ON.
4. Check the operating sound of blower relay.
Blower motor A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M98 2 M50 32 Existed
JPIIA1025GB
(+) (−)
Vo l ta g e
Blower relay —
1
Ground Battery voltage
3

MAGNET CLUTCH
HAC-197
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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MAGNET CLUTCH
DescriptionINFOID:0000000003884776
The magnet clutch drives the compressor, by an IPDM E/R signal.
Component Function CheckINFOID:0000000003884777
1.FUNCTION INSPECTION
1. Press AUTO switch.
2. “AUTO” is indicated on the display.
3. Check that the indicator of the A/C switch turns on. Check visually and by sound that the compressor is
operating (the discharge air temperature or fan speed varies depending on the ambient temperature, in-
vehicle temperature, and temperature setting).
4. Press the A/C switch.
5. Check that the indicator of the A/C switch turns OFF. Check visually and by sound that the compressor
stops.
Does it operate normally?
YES >> INSPECTION END
NO >> Perform trouble diagnosis for the compressor. Refer to HAC-197, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003884778
1.INSPECTION IN AUTO ACTIVE TEST MODE
Perform “AUTO ACTIVE TEST”. Refer to PCS-11, "
Diagnosis Description".
Does it operate normally?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK MAGNET CLUTCH
1. Turn the ignition switch OFF.
2. Disconnect the magnet clutch connector.
3. Directly apply the battery voltage to the magnet clutch. Check for operation visually and by sound.
Does it operate normally?
YES >> GO TO 3.
NO >> Replace the compressor.
3.CHECK MAGNET CLUTCH CIRCUIT CONTINUITY
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between magnet clutch harness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or connector.
4.CHECK FUSE
Check 10A fuse (No. 49).
NOTE:
Refer to PG-101, "
Fuse, Connector and Terminal Arrangement" for fuse location.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Replace the fuse after repairing the applicable circuit.
IPDM E/R Compressor
Continuity
Connector Terminal Connector Terminal
F12 48 F18 1 Existed

IONIZER
HAC-199
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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IONIZER
WITH INTELLIGENT AIR CONDITIONER SYSTEM
WITH INTELLIGENT AIR CONDITIONER SYSTEM : DescriptionINFOID:0000000003884785
Ionizer (1) is attached to the ventilator dust (RH) (2).
Ionizer has two types of operation mode and emits ions into the air
 Clean mode: Emits positive and negative ions at the same ratio.
 Ion control mode: Emits more negative ions.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Component Function Check
INFOID:0000000003884786
1.CHECK IONIZER OPERATION SOUND
1. Turn ignition switch ON.
2. Press AUTO switch.
3. Ion indicator (blue) is shown on the display.
4. Check the ionizer operation sound (whirring sound) in the duct by putting an ear to the center ventilator
grille (RH) outlet.
Is the inspection result normal?
YES >> END.
NO >> Go to Diagnosis Procedure. Refer to HAC-199, "
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Diagnosis Procedure".
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Diagnosis ProcedureINFOID:0000000003884787
1.CHECK POWER SUPPLY FOR IONIZER
1. Turn ignition switch OFF.
2. Disconnect ionizer connector.
3. Turn ignition switch ON.
4. Check voltage between ionizer harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Check 10A fuse (No. 3, located in the fuse block). Refer to PG-101, "
Fuse, Connector and Ter-
minal Arrangement".
 If fuse is OK, check harness for open circuit. Repair or replace if necessary.
 If fuse is NG, replace fuse and check for short circuit. Repair or replace if necessary.
2.CHECK ION ON/OFF OUTPUT SIGNAL
1. Turn fan control dial clockwise.
2. Check voltage between ionizer harness connector and ground.
JPIIA1160ZZ
Ionizer
Voltag e
(Approx.) (+) (−)
Connector Terminal
Ground
M151 1 Battery voltage