NISSAN TEANA 2008 Service Manual

B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-183
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
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B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
DescriptionINFOID:0000000003884763
COMPONENT DESCRIPTION
Air Mix Door Motor (Passenger Side)
 The air mix door motor (passenger side) (1) are attached to the
heater & cooling unit assembly.
 It rotates so that the air mix door is opened or closed to a position
set by the A/C auto amp.
 Motor rotation is then conveyed through a shaft and the air mix
door position feedback is then sent to the A/C auto amp. by PBR
built-in air mix door motor.
DTC LogicINFOID:0000000003884764
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".
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
“B2634” or “B2635” displayed?
YES >> Perform trouble diagnosis for the air mix door motor (passenger side). Refer to HAC-184, "Diag-
nosis Procedure".
NO >> GO TO 2.
2.FUNCTION INSPECTION
1. Press temperature control “UP” switch (passenger side) until 32°C (90°F) is displayed.
2. Check for warm air at discharge air outlets.
3. Operate the compressor.
4. Press temperature control “DOWN” switch (passenger side) until 18°C (60°F) is displayed.
5. Check for cool air at air discharge outlets.
Does it operate normally?
YES >> END.
NO >> Check air mix door motor (passenger side) installation, and repair or replace the malfunctioning
parts.
:Vehicle front
JPIIA0892ZZ
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B2634 PASS AIRMIX ACTR (SHORT)Air mix door PBR (passenger side) position
5% or less Air mix door motor (passenger
side)
 A/C auto amp.
 Harness and connector
(CAN communication line is open
or shorted)
(Air mix door motor is open or
shorted) B2635 PASS AIRMIX ACTR (OPEN)Air mix door PBR (passenger side) position
95% or more

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-185
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B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
DescriptionINFOID:0000000003884766
COMPONENT DESCRIPTION
Mode Door Motor
 The mode door motor (1) are attached to the heater & cooling unit
assembly.
 It rotates so that air is discharged from the outlet set by the A/C
auto amp. Motor rotation is conveyed to a link which activates the
mode door.
DTC LogicINFOID:0000000003884767
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".
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
“ B2636 ”, “ B2637 ”, “B2638 ”, “B2639 ”, “B2654 ” or “B2655 ” displayed?
YES >> Perform trouble diagnosis for the mode door motor. Refer to HAC-186, "Diagnosis Procedure".
NO >> GO TO 2.
2.FUNCTION INSPECTION
1. Press MODE switch and DEF switch.
2. Each position indicator should change shape.
3. Confirm that air discharge comes out according to the air distribution table at below. Refer to HAC-122,
"WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Description" (WITHOUT INTELLI-
:Vehicle front
JPIIA0893ZZ
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B2636 DR VENT DOOR FAILWhen the malfunctioning door position is
detected at VENT position
 Mode door motor
 A/C auto amp.
 Harness and connector
(CAN communication line is open
or shorted)
(Mode door motor is open or short-
ed) B2637 DR B/L DOOR FAILWhen the malfunctioning door position is
detected at B/L position
B2638 DR D/F1 DOOR FAILWhen the malfunctioning door position is
detected at FOOT position
B2639 DR DEF DOOR FAILWhen the malfunctioning door position is
detected at DEF position
B2654 D/F2 DOOR FAILWhen the malfunctioning door position is
detected at D/F position
B2655 B/L2 DOOR FAILWhen the malfunctioning door position is
detected at B/L2 position

HAC-186
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
GENT AIR CONDITIONER SYSTEM) or HAC-133, "WITH INTELLIGENT AIR CONDITIONER SYSTEM :
System Description" (WITH INTELLIGENT AIR CONDITIONER SYSTEM).
NOTE:
Confirm that the compressor clutch is engaged (Sound or visual inspection) and intake door position is at FRE
when DEF is selected.
Does it operate normally?
YES >> END.
NO >> Check mode door motor installation, and repair or replace the malfunctioning parts.
Diagnosis ProcedureINFOID:0000000003884768
1.CHECK POWER SUPPLY FOR MODE DOOR MOTOR
Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SIGNAL FOR MODE DOOR MOTOR
Confirm A/C LAN signal between mode door motor harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
JPIIA0877GB
(+) (−)
Vo l ta g e Mode door motor
—
Connector Terminal
M310 1 Ground Battery voltage
(+) (−)
Voltag e Mode door motor
—
Connector Terminal
M310 3 Ground
SJIA1453J

B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-187
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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

HAC-188
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
DescriptionINFOID:0000000003884769
COMPONENT DESCRIPTION
Intake Door Motor
 The intake door motor (1) is attached to the blower unit.
 It rotates so that air is drawn from inlets set by the A/C auto amp.
Motor rotation is conveyed to a lever which activates the intake
door.
DTC LogicINFOID:0000000003884770
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".
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
“B263D”, “B263E”, “B263F” or “B2656” displayed?
YES >> Perform trouble diagnosis for the intake door motor. Refer to HAC-189, "Diagnosis Procedure".
NO >>  WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : GO TO 2.
 WITH INTELLIGENT AIR CONDITIONER SYSTEM : GO TO 3.
2.FUNCTION INSPECTION (WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM)
1. Press REC switch.
2. The REC switch indicator is turned ON. (REC position)
3. Listen for intake door position change (Slight change of blower sound can be heard.).
4. Press FRE switch.
5. The FRE 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?
:Vehicle front
JPIIA0516ZZ
DTCItems
(CONSULT-III screen terms)Diagnostic item is detected when... Possible cause
B263D FRE DOOR FAILWhen the malfunctioning intake door posi-
tion is detected at FRE position
 Intake door motor
 A/C auto amp.
 Harness and connector
(CAN communication line is open
or shorted)
(Intake door motor is open or
shorted) B263E 20P FRE DOOR FAILWhen the malfunctioning intake door posi-
tion is detected at 20%FRE position
B263F REC DOOR FAILWhen the malfunctioning intake door posi-
tion is detected at REC position
B2656 BTC FRE DOOR FAILWhen the malfunctioning intake door posi-
tion is detected

B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
HAC-189
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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

HAC-190
< COMPONENT DIAGNOSIS >[WITH 7 INCH DISPLAY]
B263D B263E, B263F, B2656 INTAKE DOOR MOTOR
YES >> Replace intake door motor.
NO >> Repair harness or connector.

POWER SUPPLY AND GROUND CIRCUIT
HAC-191
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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