Nissan Leaf. Instruction — part 762
A/C AUTO AMP.
HAC-51
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
*: “DUTY” is displayed, but voltage is indicated. Or unit is not displayed but unit is (V).
TERMINAL LAYOUT
INPUT/OUTPUT SIGNAL STANDARD
COMP USE PERMIT POWER
Power switch ON
A/C switch: ON
(Compressor operation status)
Value calculation for electric com-
pressor consumption power by A/C
auto amp.
(0 - 12750 W)
REFRIGERANT PRE SEN
Power switch READY
A/C switch: ON
(Compressor operation status)
Equivalent to refrigerant pressure
FORCED Off SIGNAL
Power switch ON
A/C switch: ON
(Compressor operation status)
Normal: Off
Received electric compressor stop
request: On
FORCED INTAKE REC SIG
Power switch READY
When the coolant temperature of
the high voltage system is high
On
Except the above
Off
PRE-CLIMATE SIGNAL
Power switch ON
When the A/C-Heater Timer or
remote climate control is operate
On
Except the above
Off
HV SPLY/BLOCK CMPL FLAG
Power switch READY
A/C switch: ON
(Compressor operation status)
When VCM supplies a high voltage:
ON
When VCM stops the supply of the
high voltage: OFF
PTC CONSUMPTION VOLT
Power switch READY
Heater FULL HOT operation
Value calculation for PTC heater
consumption power by A/C auto
amp.
(0 - 12750 W)
PTC OUT TEMP SENS
Power switch READY
-30 - 225
°C
A/C UNIT TEMP SENS
Power switch READY
-30 - 225
°C
CMP DISCHR TEMP SENS
Power switch READY
-30 - 225
°C
CMP SUCTN TEMP SENS
Power switch READY
-30 - 225
°C
2-WAY VALVE STATE
Power switch READY
A/C switch: ON, during cooling
mode
Off
A/C switch: OFF, during heating
mode
On
3-WAY VALVE STATE
Power switch READY
A/C switch: ON, during cooling
mode
Off
A/C switch: OFF, during heating
mode
On
Monitor item
Condition
Value/Status
JMIIA0690ZZ
H
A
C
- 5 2
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
A/C AUTO AMP.
Terminal No.
(Wire color)
Item
Test condition
Standard
+
−
Signal name
Input/
Output
1
(V)
10
(B)
FRE*
1
Intake door motor drive
signal
Output
• Power switch ON
• Intake switch: REC
→FRE
Battery voltage
• Power switch ON
• Intake switch: FRE
→REC
0 – 1 V
REC*
2
Intake door motor drive
signal
Output
• Power switch ON
• Intake switch: FRE
→REC
Battery voltage
• Power switch ON
• Intake switch: REC
→FRE
0 – 1 V
2
(R)
10
(B)
MODE
drive 4
Mode door motor drive
signal
Output
• Power switch ON
• Immediately after mode
switch is operated
3
(P)
10
(B)
MODE
drive 3
4
(BG)
10
(B)
MODE
drive 2
5
(V)
10
(B)
MODE
drive 1
6
(BR)
10
(B)
A/MIX
drive 4
Air mix door motor drive
signal
Output
• Power switch ON
• Immediately after temper-
ature control switch is op-
erated
7
(GR)
10
(B)
A/MIX
drive 3
8
(LG)
10
(B)
A/MIX
drive 2
9
(L)
10
(B)
A/MIX
drive 1
10
(B)
Ground
Ground
—
Power switch ON
0 – 0.1 V
12
(GR)
10
(B)
Power transistor control signal
Output
• Power switch ON
• Fan speed: Instruction speed
1
15
(W)
10
(B)
Rear defogger switch
Output
• Power switch ON
• Rear window defogger
switch OFF
• Power switch ON
• Rear defogger switch is
pressed.
0 V
16
(LG)
10
(B)
Steering heater switch signal
Output
• Power switch ON
• Steering heater switch
OFF
0 V
• Power switch ON
• Steering heater switch is
pressed.
0.9 V or less
JPIIA1647GB
JPIIA1647GB
ZJIA0863J
JSIIA1668ZZ
A/C AUTO AMP.
HAC-53
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
17
(W)
10
(B)
PTC heater outlet air temperature
sensor signal
Input
• Power switch ON
• When air conditioner is
operating
19
(W)
10
(B)
Illumination +
Input
• Power switch ON
• Lighting switch 1st
Battery voltage
• Power switch ON
• Lighting switch OFF
0 V
20
(B)
10
(B)
Illumination –
—
• Power switch ON
• Lighting switch 1st
• Power switch ON
• Lighting switch OFF
0 V
21
(G)
10
(B)
REC*
1
Intake door motor drive
signal
Output
• Power switch ON
• Intake switch: FRE
→REC
Battery voltage
• Power switch ON
• Intake switch: REC
→FRE
0 – 1 V
FRE*
2
Intake door motor drive
signal
Output
• Power switch ON
• Intake switch: REC
→FRE
Battery voltage
• Power switch ON
• Intake switch: FRE
→REC
0 – 1 V
22
(V)
10
(B)
Steering heater relay signal
Output
Power switch ON
0 V
Power switch OFF
Battery voltage
23
(SB)
10
(B)
Seat heater relay
Output
Power switch ON
0 V
Power switch OFF
Battery voltage
27
(W)
10
(B)
Sensor power (5 V)
Output Power switch ON
5 V
28
(L)
—
EV CAN-H
Input/
Output
—
—
29
(G)
—
EV CAN-L
Input/
Output
—
—
30
(R)
10
(B)
Sensor ground
—
Power switch ON
0 – 0.1 V
31
(G)
10
(B)
Battery power supply
Input
Power switch OFF
Battery voltage–
32
(Y)
10
(B)
Ignition power
Input
Power switch ON
9.0 V or more
Power switch OFF
6.5 V or less
Terminal No.
(Wire color)
Item
Test condition
Standard
+
−
Signal name
Input/
Output
JSIIA1778ZZ
JSIIA1661ZZ
HAC-54
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
A/C AUTO AMP.
33
(LG)
10
(B)
In-vehicle sensor signal
Input
• Power switch ON
• When air conditioner is
operating
34
(G)
10
(B)
Intake sensor signal
Input
• Power switch ON
• When air conditioner is
operating
35
(P)
10
(B)
Sunload sensor signal
Input
• Power switch ON
• When air conditioner is
operating
36
(GR)
10
(B)
Ambient sensor signal
Input
• Power switch ON
• When air conditioner is
operating
37
(Y)
10
(B)
A/C unit case temperature sensor
signal
Input
• Power switch ON
• When air conditioner is
operating
38
(SB)
10
(B)
Intake door motor PBR feedback
signal
Input
• Power switch ON
• Intake switch: REC
0.2 – 0.8 V
• Power switch ON
• Intake switch: FRE
4.2 – 4.8 V
40
(SB)
10
(B)
LIN
Input/
Output
• Power switch ON
• When air conditioner is
operating
Terminal No.
(Wire color)
Item
Test condition
Standard
+
−
Signal name
Input/
Output
JSIIA1662ZZ
JSIIA1663ZZ
JSIIA1664ZZ
JSIIA1665ZZ
JSIIA1778ZZ
JSIIA1667ZZ
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