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-

tion"

.

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 

HAC-83, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000011276628

Regarding Wiring Diagram information, refer to 

HAC-35, "Wiring Diagram"

.

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 

HAC-48, "Work Procedure"

.

3. Perform “Self Diagnostic Result” of “HVAC” using CONSULT. Refer to 

HAC-22, "CONSULT Function

(HVAC)"

.

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 

HAC-85, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000011276630

Regarding Wiring Diagram information, refer to 

HAC-35, "Wiring Diagram"

.

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 

HAC-48, "Work Procedure"

.

3. Perform “Self Diagnostic Result” of “HVAC” using CONSULT. Refer to 

HAC-22, "CONSULT Function

(HVAC)"

.

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:

Refer to 

PG-64, "Terminal Arrangement"

.

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