Nissan Murano Z51. Instruction — part 882
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-183
< DTC/CIRCUIT DIAGNOSIS >
[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
Description
INFOID:0000000005514728
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 Logic
INFOID:0000000005514729
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-III
1.
Using CONSULT-III, 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.“ B2636 ”, “ B2637 ”, “B2638 ”, “B2639 ”, “B2654 ” or “B2655 ” displayed?
YES
>> Perform trouble diagnosis for the mode door motor. Refer to
HAC-184, "Diagnosis Procedure"
.
NO
>> GO TO 2.
2.
FUNCTION INSPECTION
1.
Press MODE switch and DEF switch.
2.
Each position indicator should change shape.
:
Vehicle front
JPIIA0513ZZ
DTC
Items
(CONSULT-III screen terms)
Diagnostic item is detected when...
Possible cause
B2636
DR VENT DOOR FAIL
When the malfunctioning door position is
detected at VENT position
• Mode door motor (PBR internal
circuit is open or shorted)
• A/C auto amp.
• Harness and connector (LAN
communication line is open or
shorted)
B2637
DR B/L DOOR FAIL
When the malfunctioning door position is
detected at B/L position
B2638
DR D/F1 DOOR FAIL
When the malfunctioning door position is
detected at FOOT position
B2639
DR DEF DOOR FAIL
When the malfunctioning door position is
detected at DEF position
B2654
D/F2 DOOR FAIL
When the malfunctioning door position is
detected at D/F position
B2655
B/L2 DOOR FAIL
When the malfunctioning door position is
detected at B/L2 position
HAC-184
< DTC/CIRCUIT DIAGNOSIS >
[WITH 7 INCH DISPLAY]
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
3.
Confirm that air discharge comes out according to the air distribution table at below. Refer to
.
NOTE:
Confirm that the compressor clutch is engaged (Sound or visual inspection) and intake door position is at FRE
when DEF (
) or D/F (
) is selected.
Does it operate normally?
YES
>> INSPECTION END
NO
>> Check mode door motor installation, and repair or replace the malfunctioning parts.
Diagnosis Procedure
INFOID:0000000005514730
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.
JPIIA0509GB
JPIIA0510GB
(+)
(
−
)
Voltage
Mode door motor
—
Connector
Terminal
M310
1
Ground
Battery voltage
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-185
< DTC/CIRCUIT DIAGNOSIS >
[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
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.
(+)
(
−
)
Voltage
Mode door motor
—
Connector
Terminal
M310
3
Ground
SJIA1453J
Mode door motor
—
Continuity
Connector
Terminal
M310
2
Ground
Existed
HAC-186
< DTC/CIRCUIT DIAGNOSIS >
[WITH 7 INCH DISPLAY]
B263D, B263E, B263F INTAKE DOOR MOTOR
B263D, B263E, B263F INTAKE DOOR MOTOR
Description
INFOID:0000000005514731
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 Logic
INFOID:0000000005514732
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-III
1.
Using CONSULT-III, 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.“B263D”, “B263E” or “B263F” displayed?
YES
>> Perform trouble diagnosis for the intake door motor. Refer to
HAC-187, "Diagnosis Procedure"
NO
>> GO TO 2.
2.
FUNCTION INSPECTION
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 OFF. (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.
:
Vehicle front
JPIIA0516ZZ
DTC
Items
(CONSULT-III screen terms)
Diagnostic item is detected when...
Possible cause
B263D
FRE DOOR FAIL
When the malfunctioning intake door posi-
tion is detected at FRE position
• Intake door motor (PBR internal
circuit is open or shorted)
• A/C auto amp.
• Harness and connector (LAN com-
munication line is open or shorted)
B263E
20P FRE DOOR FAIL
When the malfunctioning intake door posi-
tion is detected at 20%FRE position
B263F
REC DOOR FAIL
When the malfunctioning intake door posi-
tion is detected at REC position
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