Nissan Altima HL32 Hybrid. Manual - part 507

B2632, B2633 AIR MIX DOOR MOTOR PBR (DRIVER SIDE)

HAC-49

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

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) harness connector M128 terminal 2 and ground.

Is the inspection result normal?

YES

>> Replace air mix door motor (driver side). Refer to 

VTL-20, "Removal and Installation"

.

NO

>> Repair harness or connector.

(+)

(

−)

Voltage

Air mix door motor (driver side)

—

Connector

Terminal

M128

1

Ground

SJIA1453J

Air mix door motor (driver side)

—

Continuity

Connector

Terminal

M128

2

Ground

Continuity should exist

HAC-50

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

B2634, B2635 AIR MIX DOOR MOTOR PBR (PASSENGER SIDE)

B2634, B2635 AIR MIX DOOR MOTOR PBR (PASSENGER SIDE)

Description

INFOID:0000000004215329

COMPONENT DESCRIPTION

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 auto amp. Motor rotation is then

conveyed through a shaft and the air mix door position feedback is

then sent to the auto amp. by PBR built-in air mix door motor.

DTC Logic

INFOID:0000000004215330

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at

least 10 seconds before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 50 seconds.

2. Check DTC.
Is DTC detected?

YES

>> Go to Diagnosis Procedure. 

HAC-50, "Diagnosis Procedure"

.

NO

>> END.

Diagnosis Procedure

INFOID:0000000004215331

1.

CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE)

Check air mix door motor (passenger side). Refer to 

VTL-20, "Removal and Installation"

.

Is it installed normally?

YES

>> GO TO 2.

NO

>> Replace air mix door motor (passenger side). Refer to 

VTL-20, "Removal and Installation"

.

2.

CHECK POWER SUPPLY FOR AUTO AMP.

1. Turn ignition switch ON.

2. Check voltage between auto amp. harness connector M37 terminal 20 and ground.

:

Vehicle front

JPIIA0037ZZ

DTC No.

Trouble Diagnosis 

Name

DTC Detecting Condition

Possible Cause

B2634

PASS AIRMIX ACTR
SHORT

Air mix door (passenger side) does not change 
even if auto amp. operates air mix door motor 
(passenger side).

• Air mix door motor (passenger side)
• Auto amp.
• Harness or connectors

(The door motor circuit is open or shorted.)

B2635

PASS AIRMIX ACTR
OPEN

B2634, B2635 AIR MIX DOOR MOTOR PBR (PASSENGER SIDE)

HAC-51

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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

>> Replace auto amp. Refer to 

VTL-8, "Removal and Installation"

.

3.

CHECK SIGNAL FOR AUTO AMP. 

Confirm A/C LAN signal between auto amp. harness connector M37 terminal 3 and ground using an oscillo-

scope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace auto amp. Refer to 

VTL-8, "Removal and Installation"

. 

4.

CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)

Check voltage between air mix door motor (passenger side) harness connector M129 terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair harness or connector.

5.

CHECK SIGNAL FOR AIR MIX DOOR MOTOR (PASSENGER SIDE)

Confirm A/C LAN signal between air mix door motor (passenger side) harness connector M129 terminal 1 and

ground using an oscilloscope.

(+)

(

−)

Voltage

Auto amp.

—

Connector

Terminal

M37

20

Ground

Battery voltage

(+)

(

−)

Voltage

Auto amp.

—

Connector

Terminal

M37

3

Ground

SJIA1453J

(+)

(

−)

Voltage

Air mix door motor (passenger side)

—

Connector

Terminal

M129

3

Ground

Battery voltage

HAC-52

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

B2634, B2635 AIR MIX DOOR MOTOR PBR (PASSENGER SIDE)

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair harness or connector.

6.

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 

VTL-20, "Removal and Installation"

.

NO

>> Repair harness or connector.

(+)

(

−)

Voltage

Air mix door motor (passenger side)

—

Connector

Terminal

M129

1

Ground

SJIA1453J

Air mix door motor (passenger side)

—

Continuity

Connector

Terminal

M129

2

Ground

Continuity should exist