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
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
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
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