Nissan Altima HL32 Hybrid. Manual - part 506

B2630, B2631 SUNLOAD SENSOR

HAC-45

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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4. Check continuity between sunload sensor harness connector M56 terminal 1 and ground.

Is the inspection result normal?

YES

>> Replace auto amp. Refer to 

VTL-8, "Removal and Installation"

.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000004215325

Measure voltage between auto amp. harness connector M37 termi-

nal 7 and ground.

Sunload sensor

Auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M56

1

M37

7

Continuity should exist

Sunload sensor

—

Continuity

Connector

Terminal

M56

1

Ground

Continuity should not exist

1.

Sunload sensor

JPIIA0049GB

HAC-46

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

B2630, B2631 SUNLOAD SENSOR

• When checking sunload sensor, select a place where sunshine directly on it.

If NG, replace sunload sensor. Refer to 

VTL-10, "Removal and Installation"

.

SHA930E

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

HAC-47

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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

Description

INFOID:0000000004215326

COMPONENT DESCRIPTION

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 auto amp. Motor rotation is then con-

veyed 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:0000000004215327

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-47, "Diagnosis Procedure"

.

NO

>> END.

Diagnosis Procedure

INFOID:0000000004215328

1.

CHECK AIR MIX DOOR MOTOR (DRIVER SIDE)

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

VTL-20, "Removal and Installation"

.

Is it installed normally?

YES

>> GO TO 2.

NO

>> Replace air mix door motor (driver 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

JPIIA0036ZZ

DTC No.

Trouble Diagnosis 

Name

DTC Detecting Condition

Possible Cause

B2632

DR AIRMIX ACTR
SHORT

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

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

(The door motor circuit is open or shorted.)

B2633

DR AIRMIX ACTR
OPEN

HAC-48

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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

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 (DRIVER SIDE)

Check voltage between air mix door motor (driver side) harness connector M128 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 (DRIVER SIDE)

Confirm A/C LAN signal between air mix door motor (driver side) harness connector M128 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 (driver side)

—

Connector

Terminal

M128

3

Ground

Battery voltage