Nissan Maxima. Manual — part 717
HAC-44
< DTC/CIRCUIT DIAGNOSIS >
[WITH COLOR DISPLAY]
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
Description
INFOID:0000000010050986
COMPONENT DESCRIPTION
Air Mix Door Motor (Driver side)
• The air mix door motor (driver side) (1) is 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 Logic
INFOID:0000000010050987
DTC DETECTION LOGIC
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
1. Using CONSULT, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC No. 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
.
Is DTC No.“B2632” or “B2633” displayed?
YES
>> Perform trouble diagnosis for the air mix door motor (driver side). Refer to
.
NO
>> GO TO 2.
2.
FUNCTION INSPECTION
1. Turn the temperature control dial (driver side) until 32
°C (90°F) is displayed.
2. Check for warm air at discharge air outlets.
3. Operate the compressor.
4. Turn the temperature control dial (driver side) until 18
°C (60°F) is displayed.
5. Check for cool air at air discharge outlets.
Does it operate normally?
YES
>> Inspection End.
AWIIA0024ZZ
DTC
Items
(CONSULT screen terms)
Diagnostic item is detected when...
Possible cause
B2632
DR AIRMIX ACTR (SHORT)
Air mix door PBR (driver side) position
5% or less
• Air mix door motor (driver side)
• A/C auto amp.
• Harness and connector
(CAN communication line is
open or shorted)
(Air mix door motor is open or
shorted)
B2633
DR AIRMIX ACTR (OPEN)
Air mix door PBR (driver side) position
95% or more
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-45
< DTC/CIRCUIT DIAGNOSIS >
[WITH COLOR DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO
>> Check air mix door motor (driver side) installation, and repair or replace the malfunctioning parts.
Refer to
HAC-107, "AIR MIX DOOR MOTOR : Removal and Installation - Air Mix Door Motor
Diagnosis Procedure
INFOID:0000000010050988
Regarding Wiring Diagram information, refer to
HAC-67, "Wiring Diagram - With Color Display"
1.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between air mix door motor (driver side) harness
connector M128 terminal 1 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 M128 terminal 3 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) har-
ness connector M128 terminal 2 and ground.
Is the inspection result normal?
YES
>> Replace air mix door motor (driver side). Refer to
107, "AIR MIX DOOR MOTOR : Removal and Installa-
tion - Air Mix Door Motor (Driver Side)"
.
NO
>> Repair harness or connector.
1 - Ground
: Battery Voltage
AWIIA1142ZZ
(+)
(
−)
Voltage
Air mix door motor
(driver side)
—
Connector
Terminal
M128
3
Ground
AWIIA1143ZZ
SJIA1453J
2 - Ground
: Continuity should exist.
AWIIA1144ZZ
HAC-46
< DTC/CIRCUIT DIAGNOSIS >
[WITH COLOR DISPLAY]
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
Description
INFOID:0000000010050989
COMPONENT DESCRIPTION
Air Mix Door Motor (Passenger Side)
• The air mix door motor (passenger side) (1) is 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 Logic
INFOID:0000000010050990
DTC DETECTION LOGIC
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
1. Using CONSULT, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC No. 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
.
Is DTC No.“B2634” or “B2635” displayed?
YES
>> Perform trouble diagnosis for the air mix door motor (passenger side). Refer to
NO
>> GO TO 2.
2.
FUNCTION INSPECTION
1. Turn the temperature control dial (passenger side) until 32
°C (90°F) is displayed.
2. Check for warm air at discharge air outlets.
3. Operate the compressor.
4. Turn the temperature control dial (passenger side) until 18
°C (60°F) is displayed.
5. Check for cool air at air discharge outlets.
Does it operate normally?
YES
>> Inspection End.
AWIIA1118ZZ
DTC
Items
(CONSULT 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
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-47
< DTC/CIRCUIT DIAGNOSIS >
[WITH COLOR DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO
>> Check air mix door motor (passenger side) installation, and repair or replace the malfunctioning
parts. Refer to
HAC-107, "AIR MIX DOOR MOTOR : Removal and Installation - Air Mix Door
Diagnosis Procedure
INFOID:0000000010050991
Regarding Wiring Diagram information, refer to
HAC-67, "Wiring Diagram - With Color Display"
1.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between air mix door motor (passenger side) har-
ness connector M129 terminal 1 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 oscillo-
scope.
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 M129 terminal 2 and ground.
Is the inspection result normal?
YES
>> Replace air mix door motor (passenger side). Refer to
HAC-107, "AIR MIX DOOR MOTOR : Removal and
Installation - Air Mix Door Motor (Passenger Side)"
.
NO
>> Repair harness or connector.
1 - Ground
:Battery Voltage
AWIIA1145ZZ
(+)
(
−)
Voltage
Air mix door motor
(passenger side)
—
Connector
Terminal
M129
3
Ground
AWIIA1146ZZ
SJIA1453J
2 - Ground
: Continuity should exist.
AWIIA1147ZZ
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