Nissan Altima HL32 Hybrid. Manual — part 521
![](/vehicles/gon/sttello/nita/bupueutchoue.png)
HV ECU
HAC-105
< ECU DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
56
Ground
W
Compressor inverter
communication
—
[Ignition switch: READY]
The wave form will vary depend-
ing on the content of the digital
communication (digital signal).
60
Ground
P
Power supply for PNP
switch
—
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
77
Ground
L/B
HV battery assembly
(SMRP operation signal)
—
[Ignition switch: ON to READY]
82
Ground
G/B
Back up lamp relay
Output
[Ignition switch: ON]
• Shift position: R
0 - 1.5V
[Ignition switch: ON]
• Shift position: Except above
BATTERY VOLTAGE
(11 - 14V)
94
Ground GR/R
MG ECU communication
(Interlock switch signal)
Input
[Ignition switch: ON]
• Service plug grip: Connect
0 - 1.5V
[Ignition switch: ON]
• Service plug grip: Disconnect
BATTERY VOLTAGE
(11 - 14V)
100
Ground
L
ECM
(PHASE signal)
Input
[Engine is running]
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle.
The pulse cycle becomes short-
er as the engine speed in-
creased.
101
Ground
P
ECM
(POS signal)
Input
[Engine is running]
• Idle speed
The pulse cycle becomes short-
er as the engine speed in-
creased.
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JMCIA0006GB
JMCIA0007GB
JMCIA0008GB
JMCIA0009GB
![](/vehicles/gon/sttello/nita/plldrasiean.png)
HAC-106
< ECU DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
HV ECU
102
Ground
L/O
Brake ECU
(Vehicle speed signal)
Input
[Ignition switch: READY]
• Vehicle speed: 20 km/h (12
MPH)
The higher the vehicle speed,
the shorter the cycle.
103
Ground
GR
HV battery assembly
(DC/DC converter opera-
tion signal)
Input
[Ignition switch: ON]
0.1 - 0.5V
[Ignition switch: READY]
5 - 7V
104
Ground
G/R
HV battery assembly
(DC/DC converter opera-
tion signal)
Input
[Ignition switch: ON]
The cycle will vary depending on
the specified voltage of the hy-
brid vehicle converter.
105
Ground
Y/R
HV battery blower fan
motor
—
[Ignition switch: ON]
• During ACTIVE TEST
109
Ground
R
Inverter water pump
—
[Ignition switch: READY]
112
Ground
O
Sensor power supply
(Accelerator pedal posi-
tion sensor 2)
—
[Ignition switch: ON]
5V
113
Ground
O/L
Sensor power supply
(Accelerator pedal posi-
tion sensor 1)
—
[Ignition switch: ON]
5V
118
Ground
G/B
ASCD brake switch
Input
[Ignition switch: OFF]
• Brake pedal: Fully released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: OFF]
• Brake pedal: Slightly depressed
0 - 1.5V
121
Ground
L/W
MG ECU communication
(MG shutdown signal)
Input
[Ignition switch: ON]
[Ignition switch: READY]
0 - 1.5V
129
Ground
W/L
Sensor ground
(Accelerator pedal posi-
tion sensor 2)
—
[Ignition switch: READY]
0V
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JMCIA0009GB
JMCIA0011GB
JMCIA0122GB
JMCIA0012GB
![](/vehicles/gon/sttello/nita/bbeciner.png)
HV ECU
HAC-107
< ECU DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
130
Ground
L/G
Sensor ground
(Accelerator pedal posi-
tion sensor 1)
—
[Ignition switch: READY]
0V
133
Ground
L/R
HV battery assembly
(Battery smart unit com-
munication signal)
Input
[Ignition switch: ON]
The wave form will vary depend-
ing on the content of the digital
communication (digital signal).
138
Ground
G/O
Air bag diagnosis sensor
unit
(Air bag activation signal)
Input
[Ignition switch: READY]
146
Ground
W
Accelerator pedal posi-
tion sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Shift position: P
• Accelerator pedal: Fully released
1.0 - 2.2V
[Ignition switch: ON]
• Engine stopped
• Shift position: P
• Accelerator pedal: Fully de-
pressed
3.4 - 5.3V
147
Ground
L/Y
Accelerator pedal posi-
tion sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Shift position: P
• Accelerator pedal: Fully released
0.4 - 1.4V
[Ignition switch: ON]
• Engine stopped
• Shift position: P
• Accelerator pedal: Fully de-
pressed
2.6 - 4.5V
148
Ground
R/G
Stop lamp switch
Input
[Ignition switch: ON]
• Brake pedal: Fully released
0 - 1.5V
[Ignition switch: ON]
• Brake pedal: Slightly depressed
BATTERY VOLTAGE
(11 - 14V)
150
Ground
L/G
HV battery assembly
(Battery smart unit com-
munication signal)
Input
[Ignition switch: ON]
The wave form will vary depend-
ing on the content of the digital
communication (digital signal).
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JMCIA0013GB
JMCIA0014GB
JMCIA0015GB
![](/vehicles/gon/sttello/nita/aleloofthewa.png)
HAC-108
< ECU DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
HV ECU
163
Ground
B
hybrid vehicle control
ECU ground
—
[Ignition switch: READY]
0V
165
Ground
W/G
Power supply for hybrid
vehicle control ECU
Input
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
166
Ground
BR/Y
IGCT relay
Output [Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
167
Ground
R
BCM communication
(Start signal)
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
168
Ground
R/G
Power supply for hybrid
vehicle control ECU
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
169
Ground
W/B
HV battery assembly
(SMRB operation signal)
—
[Ignition switch: ON to READY]
170
Ground
P
CAN communication line
(TOYOTA)
Input/
Output
—
—
171
Ground
L
CAN communication line
(TOYOTA)
Input/
Output
—
—
172
Ground
P
CAN communication line
(NISSAN)
Input/
Output
—
—
173
Ground
L
CAN communication line
(NISSAN)
Input/
Output
—
—
174
Ground
R/G
Power supply for hybrid
vehicle control ECU
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
175
Ground
Y/B
HV battery assembly
(SMRG operation signal)
—
[Ignition switch: ON to READY]
176
Ground
LG
MG ECU communication
—
[Ignition switch: READY]
The wave form will vary depend-
ing on the content of the digital
communication (digital signal).
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JMCIA0016GB
JMCIA0017GB
JMCIA0018GB
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