Nissan Rogue. Manual — part 765
HAC-82
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24B9 MODE DOOR MOTOR
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace mode door motor. Refer to
HAC-110, "MODE DOOR MOTOR : Removal and Installa-
.
Terminal
Resistance (
Ω)
(Approx.)
2
1
90
3
4
6
B24C3 BLOWER MOTOR FEEDBACK
HAC-83
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B24C3 BLOWER MOTOR FEEDBACK
DTC Logic
INFOID:0000000011276627
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” of “HVAC”.
3. Check if any DTC No. is displayed in the self-diagnosis results.
Is DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000011276628
Regarding Wiring Diagram information, refer to
NOTE:
This DTC can be set if the BCM is placed in transit mode. Confirm if the DTC is CURRENT or PAST. If PAST,
perform the following steps before carrying out Diagnosis Procedure.
1. Clear DTC using CONSULT. Refer to
HAC-22, "CONSULT Function (HVAC)"
2. Perform OPERATION INSPECTION. Refer to
3. Perform “Self Diagnostic Result” of “HVAC” using CONSULT. Refer to
.
4. If DTC resets, proceed with Diagnosis Procedure.
1.
CHECK FRONT BLOWER FEEDBACK SIGNAL
1. Turn ignition switch ON.
2. Set air outlet to VENT.
3. Change fan speed from 1st – 7th, and check duty ratios between variable blower control harness connec-
tor and ground by using an oscilloscope.
NOTE:
Calculate the drive signal duty ratio as shown in the figure.
T2 = Approx. 1.6 ms
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B24C3
BLOWER MOTOR FEEDBACK
Short or open circuit of blower motor
feedback circuit.
• Variable blower control
• A/C auto amp.
• Harness and connector
HAC-84
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24C3 BLOWER MOTOR FEEDBACK
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace variable blower control. Refer to
HAC-112, "Removal and Installation"
.
2.
CHECK FRONT BLOWER MOTOR FEEDBACK CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect variable blower control connector and A/C auto amp.connector.
3. Check continuity between variable blower control harness connector and A/C auto amp. connector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
VTL-16, "Removal and Installation"
.
NO
>> Repair harness or connector.
+
−
Condition
Duty ratio
(Approx.)
Output waveform
Variable blower control
Connector
Terminal
Fan speed (manual)
Air outlet: VENT
M133
1
Ground
1st
25%
2nd
35%
3rd
47%
4th
57%
5th
69%
6th
79%
7th
91%
JPIIA1646GB
Variable blower control
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M133
1
M55
64
Yes
B24C6 BLOWER MOTOR CONTROL
HAC-85
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B24C6 BLOWER MOTOR CONTROL
DTC Logic
INFOID:0000000011276629
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” of “HVAC”.
3. Check if any DTC No. is displayed in the self-diagnosis results.
Is DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000011276630
Regarding Wiring Diagram information, refer to
NOTE:
This DTC can be set if the BCM is placed in transit mode. Confirm if the DTC is CURRENT or PAST. If PAST,
perform the following steps before carrying out Diagnosis Procedure.
1. Clear DTC using CONSULT. Refer to
HAC-22, "CONSULT Function (HVAC)"
2. Perform OPERATION INSPECTION. Refer to
3. Perform “Self Diagnostic Result” of “HVAC” using CONSULT. Refer to
.
4. If DTC resets, proceed with Diagnosis Procedure.
1.
CHECK FUSE
1. Turn ignition switch OFF.
2. Check 15A fuses. [Nos. 17 and 27, located in fuse block (J/B)].
NOTE:
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK VARIABLE BLOWER CONTROL POWER SUPPLY
1. Disconnect variable blower control connector.
2. Turn ignition switch ON.
3. Check voltage between variable blower control harness connector and ground.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B24C6
BLOWER MOTOR CONTROL
Short or open circuit of blower motor
control circuit.
• Front blower motor
• Front blower relay
• Variable blower control
• A/C auto amp.
• Harness and connector
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