Nissan Leaf. Manual — part 763
A/C AUTO AMP.
HAC-55
< 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
Fail-safe
INFOID:0000000010121772
• When the A/C auto amp. detects the conditions shown below, it stops operation of the electric compressor.
• When the electric compressor detects the following conditions, electric compressor operation is restricted.
• When the PTC heater detects the following conditions, PTC heater operation is stopped.
Malfunction judgment item
Description
Recovery condition
Intake sensor malfunction
Open circuit or short circuit is detected in the in-
take sensor circuit.
Voltage value of intake sensor circuit re-
turns to normal.
Ambient sensor malfunction
Open circuit or short circuit is detected in the am-
bient sensor circuit.
Voltage value of ambient sensor circuit
returns to normal.
Malfunction judgment item
Description
Electric com-
pressor opera-
tion
Recovery condition
Compressor low voltage mal-
function
When the high voltage system input voltage is
less than 230 V
Stopped
High voltage system input volt-
age is 230 V or more
Compressor high voltage
malfunction
When the high voltage system input voltage is
more than 420 V
Stopped
High voltage system input volt-
age is 420 V or less
Compressor internal commu-
nication malfunction
When a malfunction is detected in AC inverter in-
ternal communication
Stopped
Internal communication returns
to normal
Compressor low voltage sys-
tem malfunction
Voltage of battery power supply input to electric
compressor is 9 V or less or 17 V or more.
Stopped
Voltage of battery power sup-
ply input to electric compressor
is more than 9 V or less than 17
V.
Compressor internal commu-
nication malfunction
When overcurrent is detected in inverter
Stopped
Power switch OFF
Compressor internal commu-
nication malfunction
When open circuit is detected in inverter
Stopped
Power switch OFF
Compressor current sensor
malfunction
When inverter is OFF, the detected current value
in inverter is the standard value or more
Stopped
Power switch OFF
Compressor overload
When the high load status at low speed of electric
compressor is continued
Stopped
Power switch OFF
Compressor overheat
When the inverter temperature exceeds the stan-
dard value
Stopped
Inverter temperature is the
standard value or less
Compressor system malfunc-
tion
When the internal system malfunction stop oc-
curs repeatedly
Stopped
Power switch OFF
Compressor high voltage sys-
tem malfunction
When the standard value voltage is input to AC
inverter
Stopped
Power switch OFF
Compressor communication
malfunction HVAC
→ COMP
When the electric compressor cannot receive the
signal transmitted from the A/C auto amp
Stopped
LIN communication returns to
normal
Compressor internal system
malfunction
When a malfunction is detected in the CPU, ROM
or RAM of the inverter
Stopped
Power switch OFF
Compressor HVIL circuit mal-
function
When HVIL open circuit is detected in electric
compressor system
Stopped
HVIL circuit in electric com-
pressor system returns to nor-
mal
Compressor communication
malfunction COMP
→ HVAC
When the A/C auto amp cannot receive the signal
transmitted from the electric compressor
Stopped
LIN communication returns to
normal
Compressor voltage limit
When the command speed control is disabled
due to voltage decrease of high voltage system
Compressor
speed is limited.
Voltage of high voltage system
returns to normal
Compressor motor current
limit
When the command speed control is disabled
due to decrease of motor upper limit
Compressor
speed is limited.
Motor current returns to normal
Compressor overheat
When the inverter temperature exceeds the stan-
dard value
Compressor
speed is limited.
Inverter temperature is the
standard value or less
HAC-56
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
A/C AUTO AMP.
• A/C auto amp. stops the electric compressor operation, when the following condition detections is received
from a heat pump control unit.
DTC Index
INFOID:0000000010121773
Malfunction judgment item
Description
Recovery condition
PTC heater overheat protection
When PTC heater circuit board internal temperature is 115
°C
or higher
PTC heater circuit board internal
temperature is less than 115
°C
PTC heater voltage malfunction
When supply voltage input to PTC heater is out of the stan-
dard
Supply voltage input to PTC heat-
er returns to within the standard
PTC heater circuit 1 malfunction
When PTC heater circuit (PTC1) system malfunction is de-
tected
Power switch OFF
PTC heater circuit 2 malfunction
When PTC heater circuit (PTC2) system malfunction is de-
tected
Power switch OFF
PTC heater LIN communication
malfunction
When there is a malfunction in the signal transmitted from the
PTC heater
LIN communication returns to nor-
mal
PTC heater communication mal-
function
When there is a malfunction in the signal transmitted from the
A/C auto amp. or in the signal received by the PTC heater
LIN communication returns to nor-
mal
HVAC LIN communication mal-
function
When there is a malfunction in the signal transmitted from the
A/C auto amp.
LIN communication returns to nor-
mal
Malfunction judgment item
Description
Recovery condition
A/C auto amp. LIN communica-
tion malfunction
When there is a malfunction in the signal transmitted from the
heat pump control unit
LIN communication returns to nor-
mal
Compressor discharge refriger-
ant temperature sensor malfunc-
tion
Open circuit or short circuit is detected in the compressor dis-
charge refrigerant temperature sensor circuit
Voltage value of compressor dis-
charge refrigerant temperature
sensor circuit returns to normal
Compressor suction refrigerant
temperature sensor malfunction
Open circuit or short circuit is detected in the compressor suc-
tion refrigerant temperature sensor circuit
Voltage value of compressor suc-
tion refrigerant temperature sen-
sor circuit returns to normal
Refrigerant channel switching 2
way type valve circuit malfunc-
tion
When the heat pump control unit detects a malfunction of the
refrigerant channel switching 2 way type valve control signal
status, compared to the valve status of the control that is being
judged
Power switch OFF
Refrigerant channel switching 3
way type valve circuit malfunc-
tion
When the heat pump control unit detects a malfunction of the
refrigerant channel switching 3 way type valve control signal
status, compared to the valve status of the control that is being
judged
Power switch OFF
DTC
Items
(CONSULT screen terms)
Reference
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
B2578
IN-VEHICLE SENSOR
B2579
IN-VEHICLE SENSOR
B257B
AMBIENT SENSOR
B257C
AMBIENT SENSOR
B2581
INTAKE SENSOR
B2582
INTAKE SENSOR
B2630
*
SUNLOAD SENSOR
B2631
*
SUNLOAD SENSOR
B2770
PTC HEATER CIRCUIT
A/C AUTO AMP.
HAC-57
< 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
B2771
PTC HEATER OVERHEAT PROTECT
B2772
PTC HEATER VOLTAGE
B2773
PTC HEATER CIRCUIT 1
B2774
PTC HEATER CIRCUIT 2
B2777
PTC HEATER LIN COMMUNICATION
B2779
PTC HEATER COMMUNICATION
B277B
HVAC LIN COMMUNICATION
B27A0
INTAKE DOOR MOTOR
B27A1
INTAKE DOOR MOTOR
B27A2
AIR MIX DOOR MOTOR
B27A3
AIR MIX DOOR MOTOR
B27A4
AIR MIX DOOR MOTOR
B27A5
AIR MIX DOOR MOTOR
B27A6
MODE DOOR MOTOR
B27A7
MODE DOOR MOTOR
B27A8
MODE DOOR MOTOR
B27A9
MODE DOOR MOTOR
B27B1
COMP LOW VOLTAGE
B27B2
COMP HIGH VOLTAGE
B27B3
COMP INTNL COMM
B27B4
COMP LO VOL SYS
B27B5
COMP INTNL CIRC
B27B6
COMP INTNL CIRC
B27B7
COMP CURNT SENS
B27B8
COMP OVER LOADED
B27B9
COMP OVERHEAT
B27BA
COMP SYSTEM
B27BB
COMP HI VOL SYS
B27BC
COMP COMM ERROR HVAC->COMP
B27BE
COMP INTNL SYS
B27BF
COMP INTNL CIRC
B27C0
COMP COMM ERROR COMP->HVAC
B27C1
A/C AUTO AMP. LIN COMM
B27C2
PTC OUT AIR TEMP SENS
B27C3
PTC OUT AIR TEMP SENS
B27C4
A/C UNIT CASE TEMP SENS
B27C5
A/C UNIT CASE TEMP SENS
B27C6
COMP DISCHG TEMP SENS
B27C7
COMP DISCHG TEMP SENS
B27C8
COMP SUCTION TEMP SENS
B27C9
COMP SUCTION TEMP SENS
B27CC
COMP VOL LIMIT
B27CD
COMP MTR CURRNT LMT
B27CE
COMP OVERHEAT
DTC
Items
(CONSULT screen terms)
Reference
HAC-58
< ECU DIAGNOSIS INFORMATION >
[AUTO A/C (WITH HEAT PUMP)]
A/C AUTO AMP.
*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload
sensor, otherwise self-diagnosis indicates even though the sunload sensor is functioning normally.
B27F0
2-WAY TYPE VALVE CIRC
B27F1
2-WAY TYPE VALVE CIRC
B27F2
2-WAY TYPE VALVE CIRC
B27F3
3-WAY TYPE VALVE CIRC
B27F4
3-WAY TYPE VALVE CIRC
B27F5
3-WAY TYPE VALVE CIRC
B27FF
CONFIG NOT IMPLEM
DTC
Items
(CONSULT screen terms)
Reference
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст