Nissan Sentra. Manual - part 546

HAC-32

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (IPDM E/R)

ECU IDENTIFICATION

The IPDM E/R part number is displayed.

SELF DIAGNOSTIC RESULT

Refer to 

PCS-20, "DTC Index"

.

DATA MONITOR

ACTIVE TEST

Active Test

The IPDM E/R activates outputs to test components.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

Direct Diagnostic Mode

Description

Monitor Item [Unit]

Main

Signals

Description

MOTOR FAN REQ [%]

×

Indicates cooling fan speed signal received from ECM on CAN communication 
line

AC COMP REQ [On/Off]

×

Indicates A/C compressor request signal received from ECM on CAN commu-
nication line

TAIL&CLR REQ [On/Off]

×

Indicates position light request signal received from BCM on CAN communica-
tion line

HL LO REQ [On/Off]

×

Indicates low beam request signal received from BCM on CAN communication 
line

HL HI REQ [On/Off]

×

Indicates high beam request signal received from BCM on CAN communication 
line

FR FOG REQ [On/Off]

×

Indicates front fog light request signal received from BCM on CAN communica-
tion line

FR WIP REQ [Stop/1LOW/Low/Hi]

×

Indicates front wiper request signal received from BCM on CAN communication 
line

WIP AUTO STOP [STOP P/ACT P]

×

Indicates condition of front wiper auto stop signal

WIP PROT [Off/BLOCK]

×

Indicates condition of front wiper fail-safe operation

IGN RLY1 -REQ [On/Off]

Indicates ignition switch ON signal received from BCM on CAN communication 
line

IGN RLY [On/Off]

×

Indicates condition of ignition relay

PUSH SW [On/Off]

Indicates condition of push-button ignition switch

INTER/NP SW [On/Off]

Indicates condition of CVT shift position

ST RLY CONT [On/Off]

Indicates starter relay status signal received from BCM on CAN communication 
line

IHBT RLY -REQ [On/Off]

Indicates starter control relay signal received from BCM on CAN communication 
line

ST/INHI RLY [Off/ ST /INHI]

Indicates condition of starter relay and starter control relay

DETENT SW [On/Off]

Indicates condition of CVT shift selector (park position switch)

DTRL REQ [Off]

Indicates daytime light request signal received from BCM on CAN communica-
tion line

THFT HRN REQ [On/Off]

Indicates theft warning horn request signal received from BCM on CAN commu-
nication line

HORN CHIRP [On/Off]

Indicates horn reminder signal received from BCM on CAN communication line

Test item

Description

HORN

This test is able to check horn operation [On].

REAR DEFOGGER

This test is able to check rear window defogger operation [On/Off].

FRONT WIPER

This test is able to check wiper motor operation [Hi/Lo/Off].

DIAGNOSIS SYSTEM (IPDM E/R)

HAC-33

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

CAN DIAG SUPPORT MNTR

Refer to 

LAN-13, "CAN Diagnostic Support Monitor"

.

MOTOR FAN

This test is able to check cooling fan operation [4/3/2/1].

EXTERNAL LAMPS

This test is able to check external lamp operation [Fog/Hi/Lo/TAIL/Off].

Test item

Description

HAC-34

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

A/C AUTO AMP.

ECU DIAGNOSIS INFORMATION

A/C AUTO AMP.

Reference Value

INFOID:0000000009757635

VALUES ON THE DIAGNOSIS TOOL

TERMINAL LAYOUT

PHYSICAL VALUES

Monitor item

Condition

Value/Status

AMB TEMP SEN

Ignition switch ON

—

22 - 131

°F (−30 - 55°C)

IN-VEH TEMP

Ignition switch ON

—

22 - 131

°F (−30 - 55°C)

INT TEMP SEN

Ignition switch ON

—

22 - 131

°F (−30 - 55°C)

SUNLOAD SEN

Ignition switch ON

—

0 - 1395 w/m

2

(0 - 1200 kcal/m

2

·h)

AMB SEN CAL

Ignition switch ON

—

22 -131

°F (−30 - 55°C)

IN-VEH CAL

Ignition switch ON

—

22 -131

°F (−30 - 55°C)

INT TEMP CAL

Ignition switch ON

—

22 -131

°F (−30 - 55°C)

SUNL SEN CAL

Ignition switch ON

—

0 - 1395 w/m

2

(0 - 1200 kcal/m

2

·h)

COMP REQ SIG

Engine: Run at idle after 
warming up 

A/C switch: ON
(A/C compressor operation 
status) 

On

A/C switch: OFF

Off

FAN REQ SIG

Engine: Run at idle after 
warming up 

Blower fan: ON

On

Blower fan: OFF

Off

FAN DUTY

Engine: Run at idle after 
warming up 

Blower fan: ON

25 - 85%

Blower fan: OFF

0%

XM

Ignition switch ON

—

−100 - 155

ENG COOL TEMP

Ignition switch ON

—

Values according to coolant 
temperature

VEHICLE SPEED

Driving

—

Equivalent to speedometer 
reading

ALIIA0579ZZ

A/C AUTO AMP.

HAC-35

< ECU DIAGNOSIS INFORMATION >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Terminal No.

(Wire color)

Description

Condition

Value

+

−

Signal name

Input/

Output

1

(GR)

30

(B)

ECV control signal

Output

Ignition 
switch ON

ACTIVE 
TEST 
(HVAC 
TEST: 
MODE4)

2

(LG)

30

(B)

In-vehicle sensor signal

Input

Ignition switch ON

0 – 4.8 V

Output voltage varies with in-ve-

hicle temperature

3

(L)

30

(B)

Intake sensor signal

Input

Ignition switch ON

0 – 4.8 V

Output voltage varies with evapo-

rator fin temperature

4

(GR)

30

(B)

Ambient sensor signal

Input

Ignition switch ON

0 – 4.8 V

Output voltage varies with ambi-

ent temperature

5

(G)

30

(B)

Sunload sensor signal

Input

Ignition switch ON

0 – 4.8 V

Output voltage varies with sun-

load amount

6

(L)

—

CAN-H

Input/

Output

—

—

7

(P)

—

CAN-L

Input/

Output

—

—

8

(W)

30

(B)

Intake door motor PBR power 
supply

Output

Ignition switch ON

4.8 – 5.2 V

9

(GR)

30

(B)

A/C auto amp. connection rec-
ognition signal

Output

Ignition switch ON

11 – 14 V

10

(L)

30

(B)

Sensor ground

—

Ignition switch ON

0 – 0.1 V

11

(LG)

30

(B)

Ignition power supply

Input

Ignition switch ON

11 – 14 V

12

(SB)

30

(B)

Battery power supply

Input

Ignition switch OFF

11 – 14 V

13

(V)

30

(B)

Power transistor control signal

Output

• Ignition switch ON
• Blower motor: 1st speed 

(manual)

SJIA1607E

ZJIA0863J