Nissan Qashqai J11. Manual — part 1120
HAC-116
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
ECV (ELECTRICAL CONTROL VALVE)
ECV (ELECTRICAL CONTROL VALVE)
Diagnosis Procedure
INFOID:0000000010432240
1.
CHECK ECV POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect compressor connector.
3.
Turn ignition switch ON.
4.
Check voltage between compressor harness connector and ground.
Except for HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK ECV POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check continuity between compressor harness connector and IPDM E/R harness connector.
Except for HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-68, "Removal and Installation"
NO
>> Repair harness or connector.
3.
CHECK ECV CONTROL SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check continuity between compressor harness connector and IPDM E/R harness connector.
Except for HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
+
−
Voltage
Compressor
Connector
Terminal
F151
3
Ground
11 - 14 V
+
−
Voltage
Compressor
Connector
Terminal
F180
3
Ground
11 - 14 V
Compressor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F151
3
F90
101
Existed
Compressor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F180
3
F90
101
Existed
Compressor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
F151
4
F89
82
Existed
ECV (ELECTRICAL CONTROL VALVE)
HAC-117
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
HR engine models with CVT, MR16DDT engine models, R9M engine models for EURO3 and models for Korea
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK ECV
Check ECV. Refer to
HAC-216, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-68, "Removal and Installation"
NO
>> Replace compressor. Refer to
HA-31, "Removal and Installation"
HA-75, "Removal and Installation"
(K9K and R9M engine models for
Europe),
HA-122, "Removal and Installation"
(HRA2DDT, MR16DDT and MR20DD engine mod-
els except for Europe) or
HA-171, "Removal and Installation"
. (K9K and R9M engine models
except for Europe).
Component Inspection
INFOID:0000000010432241
1.
CHECK ECV
Check continuity between compressor terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace compressor. Refer to
HA-31, "Removal and Installation"
HA-75, "Removal and Installation"
. (K9K and R9M engine models for
Europe),
HA-122, "Removal and Installation"
(HRA2DDT, MR16DDT and MR20DD engine mod-
els except for Europe) or
HA-171, "Removal and Installation"
. (K9K and R9M engine models
except for Europe).
Compressor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
F180
4
F89
82
Existed
Terminal
Continuity
3
4
Existed
HAC-118
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
PTC HEATER
PTC HEATER
Component Function Check
INFOID:0000000010499355
1.
CHECK PTC HEATER OPERATION
1.
Start the engine.
2.
Operate blower motor.
3.
Operate temperature control switch to full hot position.
4.
Check for warm air at discharge air outlet.
NOTE:
• Engine must be cold.
• Battery must be charged.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
HAC-118, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000010499356
1.
CHECK FUSE AND FUSIBLE LINK
1.
Turn ignition switch OFF.
2.
Check 30 A fuses (Nos. 35, 36 and 40).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse is blown.
2.
CHECK PTC RELAY POWER SUPPLY
1.
Disconnect PTC relay connector.
2.
Turn ignition switch ON.
3.
Check voltage between PTC relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between PTC relay and fuse.
3.
CHECK PTC RELAY CONTROL SIGNAL CIRCUIT FOR OPEN
1.
Disconnect BCM connector.
2.
Check continuity between PTC relay harness connector and BCM harness connector.
Is the inspection result normal?
Relay
+
−
Voltage
PTC relay
Connector
Terminal
1
E27
2
Ground
Battery voltage
3
2
E28
2
3
3
E29
2
3
PTC relay
BCM
Continuity
Relay
Connector
Terminal
Connector
Terminal
1
E27
1
E60
172
Existed
2
E28
173
3
E29
170
PTC HEATER
HAC-119
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK PTC HEATER POWER SUPPLY CIRCUIT FOR OPEN
Check continuity between PTC relay harness connector and PTC heater harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK PTC HEATER GROUND CIRCUIT FOR OPEN
Check continuity between PTC heater harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK PTC RELAY
Check PTC relay. Refer to
HAC-119, "Component Inspection (PTC Relay)"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace malfunctioning PTC relay.
7.
CHECK PTC HEATER
Check PTC heater. Refer to
HAC-120, "Component Inspection (PTC Heater)"
.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-135, "Removal and Installation"
.
NO
>> Replace PTC heater. Refer to
HAC-135, "Removal and Installation"
.
Component Inspection (PTC Relay)
INFOID:0000000010499357
1.
CHECK PTC RELAY
1.
Remove PTC relay.
2.
Check continuity between PTC relay terminals 3 and 5 when the
voltage is supplied between terminals 1 and 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning PTC relay.
PTC relay
PTC heater
Continuity
Relay
Connector
Terminal
Connector
Terminal
1
E27
5
E140
1
Existed
2
E28
3
3
E29
5
PTC heater
—
Continuity
Connector
Terminal
E140
2
Ground
Existed
4
Terminal
Voltage
Continuity
3
5
ON
Existed
OFF
Not existed
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