Nissan Note E12. Manual — part 246
IGNITION SIGNAL
EC-323
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Component Inspection (Condenser)
INFOID:0000000009022681
1.
CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace condenser.
Terminals
Resistance [at 25
°C (77°F)]
1 and 2
Above 1 M
Ω
EC-324
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
MALFUNCTION INDICATOR LAMP
MALFUNCTION INDICATOR LAMP
Component Function Check
INFOID:0000000009022682
1.
CHECK MIL FUNCTION
1. Turn ignition switch ON.
2. Make sure that MIL lights up.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000009022683
1.
CHECK DTC
Check that DTC UXXXX is not displayed.
Is DTC detected?
YES
>> Perform trouble diagnosis for DTC UXXXX.
NO
>> GO TO 2.
2.
CHECK COMBINATION METER
Check DTC with combination meter. Refer to
.
Is DTC detected?
YES
>> Perform troubleshooting relevant to DTC indicated.
NO
>> GO TO 3.
3.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-48, "Removal and Installation"
NO
>> Repair or replace harness or connectors.
REFRIGERANT PRESSURE SENSOR
EC-325
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
REFRIGERANT PRESSURE SENSOR
Component Function Check
INFOID:0000000009022684
1.
CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000009022685
1.
CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E15. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
ECM
Voltage
Connector
Terminal
+
−
E16
101
(Refrigerant pressure sensor signal)
98
1.0 - 4.0V
Refrigerant pressure sensor
Ground
Voltage
Connector
Terminal
E17
3
Ground
Approx. 5 V
EC-326
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
REFRIGERANT PRESSURE SENSOR
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between ECM harness connector and refrigerant pressure sensor harness connec-
tor.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace refrigerant pressure sensor. Refer to
HAC-49, "Removal and Installation"
.
NO
>> Repair or replace.
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E17
1
E16
98
Existed
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E17
2
E16
85
Existed
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