Nissan Leaf. Manual — part 824
B2782 ELECTRIC COMPRESSOR
HAC-299
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2782 ELECTRIC COMPRESSOR
DTC Logic
INFOID:0000000010122008
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch OFF.
2. Set the vehicle to READY.
3. Operate the automatic air conditioning system.
4. Set the temperature to full cold and wait at least 2 seconds.
5. Select “Self Diagnostic Result” of “HVAC” using CONSULT.
6. Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-299, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010122009
1.
REPLACE ELECTRIC COMPRESSOR
Replace electric compressor. Refer to
HA-95, "Removal and Installation"
.
>> Inspection End.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2782
COMP SHUNT SIGNAL
OFFSET
When an error is detected in the shunt signal
(current value in the A/C inverter).
Electric compressor
HAC-300
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
B2783, B2784 ELECTRIC COMPRESSOR
B2783, B2784 ELECTRIC COMPRESSOR
DTC Logic
INFOID:0000000010122010
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch OFF.
2. Set the vehicle to READY.
3. Operate the automatic air conditioning system.
4. Set the temperature to full cold and wait at least 2 seconds.
5. Select “Self Diagnostic Result” of “HVAC” using CONSULT.
6. Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-300, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010122011
1.
CHECK REFRIGERANT FOR LEAKAGES
Check refrigerant for leakages. Refer to
HA-84, "Check Refrigerant Leakage"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
CHECK COOLING FAN OPERATION
1. Set the vehicle to READY.
2. Operate the automatic air conditioning system.
3. Check that the cooling fan is operating.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check cooling fan. Refer to
EVC-367, "Component Function Check"
.
3.
CHECK REFRIGERANT CYCLE
Check refrigerant cycle. Refer to
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning parts.
4.
CHECK AIR CONDITIONING SYSTEM BY RE-FILLING REFRIGERANT
1. Collect refrigerant, and charge the air conditioning system from a new service can with the specified
amount refrigerant.
2. After operate air conditioning system 15 minutes or more, perform DTC confirmation procedure, and
check that DTC [B2783] or DTC [B2784] is not detected.
Is the inspection result normal?
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2783
COMP DISCHARGE TEMP
OVER HEAT
When the estimated refrigerant temperature
discharged from the electric compressor 130
°C
(266
°F) or more.
• Electric compressor
(Discharge pressure increase)
• Cooling fan
• Refrigerant leakage
• Refrigerant insufficient
B2784
COMP DISCHARGE TEMP
LIMIT
When the estimated refrigerant temperature
discharged from the electric compressor 110
°C
(230
°F) or more.
B2783, B2784 ELECTRIC COMPRESSOR
HAC-301
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> Replace electric compressor. Refer to
HA-95, "Removal and Installation"
.
NO
>> Repair or replace malfunctioning parts.
HAC-302
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
B2785, B2786 ELECTRIC COMPRESSOR
B2785, B2786 ELECTRIC COMPRESSOR
DTC Logic
INFOID:0000000010122012
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch OFF.
2. Set the vehicle to READY.
3. Operate the automatic air conditioning system.
4. Set the temperature to full cold and wait at least 2 seconds.
5. Select “Self Diagnostic Result” of “HVAC” using CONSULT.
6. Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-302, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010122013
1.
CHECK REFRIGERANT FOR LEAKAGES
Check refrigerant for leakages. Refer to
HA-84, "Check Refrigerant Leakage"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
CHECK COOLING FAN OPERATION
1. Set the vehicle to READY.
2. Operate the automatic air conditioning system.
3. Check that the cooling fan is operating.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check cooling fan. Refer to
EVC-367, "Component Function Check"
.
3.
CHECK REFRIGERANT CYCLE
Check refrigerant cycle. Refer to
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning parts.
4.
CHECK AIR CONDITIONING SYSTEM BY RE-FILLING REFRIGERANT
1. Collect refrigerant, and charge the air conditioning system from a new service can with the specified
amount refrigerant.
2. After operate air conditioning system 15 minutes or more, perform DTC confirmation procedure, and
check that DTC [B2785] or DTC [B2786] is not detected.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2785
COMP IPM OVER HEAT
• When the IPM temperature 125
°C (257°F) or
more within 1 min. after starting the electric
compressor.
• When the IPM temperature 88
°C (190°F) or
more after 1 min. or longer after starting the
electric compressor.
• Electric compressor
(Discharge pressure increase)
• Cooling fan
• Refrigerant leakage
• Refrigerant insufficient
B2786
COMP IPM DISCHARGE
TEMP LIMIT
When the IPM temperature 83
°C (181°F) or
more.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст