Nissan Altima HL32 Hybrid. Manual — part 540
![](/vehicles/gon/sttello/nita/apatare.png)
COOLING FAN CONTROL FOR HV BATTERY
HBB-17
< FUNCTION DIAGNOSIS >
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HBB
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1.
Service plug grip
2.
Battery temperature sensor 0
3.
Battery smart unit
4.
SMRG
5.
SMRB
6.
Battery current sensor
7.
Hybrid vehicle converter
8.
Battery temperature sensor 3
9.
Intake air temperature sensor
10. Battery temperature sensor 2
11. Battery temperature sensor 1
ALCIA0004ZZ
![](/vehicles/gon/sttello/nita/nemes.png)
HBB-18
< FUNCTION DIAGNOSIS >
AUXILIARY BATTERY CHARGING CONTROL
AUXILIARY BATTERY CHARGING CONTROL
System Diagram
INFOID:0000000004212237
System Description
INFOID:0000000004212238
GENERAL
The hybrid vehicle control ECU controls the DC/DC converter in accordance with the signals from the battery
temperature sensor of the auxiliary battery, in order to control the charging voltage to the auxiliary battery.
BATTERY TEMPERATURE SENSOR
The battery temperature sensor is installed on the battery.
The battery characteristic (battery internal resistance) of taking in current for charging varies according to bat-
tery electrolyte temperature. If the electrolyte temperature is too low, the battery internal resistance will
increase, resulting in early deterioration. To prevent this, the battery temperature sensor changes its resis-
tance as shown below to detect the temperature.
JMCIA0069GB
JMCIA0070GB
![](/vehicles/gon/sttello/nita/zahacoin.png)
AUXILIARY BATTERY CHARGING CONTROL
HBB-19
< FUNCTION DIAGNOSIS >
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HBB
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Component Parts Location
INFOID:0000000004212239
1.
Combination meter
2.
HV battery cooling fan
3.
HV battery pack
4.
HV battery cooling fan relay
5.
Hybrid vehicle control ECU
(located under heater box assembly)
ALCIA0003ZZ
![](/vehicles/gon/sttello/nita/rseray.png)
HBB-20
< FUNCTION DIAGNOSIS >
AUXILIARY BATTERY CHARGING CONTROL
1.
Service plug grip
2.
Battery temperature sensor 0
3.
Battery smart unit
4.
SMRG
5.
SMRB
6.
Battery current sensor
7.
Hybrid vehicle converter
8.
Battery temperature sensor 3
9.
Intake air temperature sensor
10. Battery temperature sensor 2
11. Battery temperature sensor 1
ALCIA0004ZZ
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