Nissan March K13. Manual — part 209
REFRIGERANT PRESSURE SENSOR
EC-297
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
E
F
G
H
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K
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M
A
EC
N
P
O
REFRIGERANT PRESSURE SENSOR
Component Function Check
INFOID:0000000005989409
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
>> Go to
Diagnosis Procedure
INFOID:0000000005989410
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 E38. 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 connectors E8, F1
• 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
Terminal
F8
41
(Refrigerant pressure sensor signal)
48
1.0 - 4.0V
Refrigerant pressure sensor
Ground
Voltage
Connector
Terminal
E49
3
Ground
Approx. 5 V
EC-298
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
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 connectors E8, F1
• 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 connectors E8, F1
• 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-33, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace refrigerant pressure sensor.
NO
>> Repair or replace.
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E49
1
F8
48
Existed
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E49
2
F8
41
Existed
ENGINE CONTROL SYSTEM SYMPTOMS
EC-299
< SYMPTOM DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
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F
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EC
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SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000005989414
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO ST
AR
T
/REST
AR
T
(EXCP
.
H
A
)
ENGINE ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK KNOCK/DET
O
NA
TION
LACK
OF POWER/
POOR
ACC
E
LERA
TION
HIGH IDL
E
/LOW
IDLE
ROUG
H IDLE/HUNTING
IDLI
NG VIBRA
T
ION
SLOW/NO RETURN T
O
IDLE
OVERHEA
T
S/W
A
TER TEMPERA
T
UR
E
HIGH
EXCESS
IVE F
U
E
L
CONSUMP
T
IO
N
EXCESS
IVE OIL CONSUMP
T
ION
BA
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
Fuel
Fuel pump circuit
1
1
2
3
2
2
2
3
2
EC-287,
"Compo-
nent Func-
tion Check"
Fuel pressure regulator system
3
3
4
4
4
4
4
4
4
4
Fuel injector circuit
1
1
2
3
2
2
2
2
EC-285,
"Compo-
nent Func-
tion Check"
Evaporative emission system
3
3
4
4
4
4
4
4
4
4
EC-41,
"EVAPO-
RATIVE
EMISSION
SYSTEM :
System
Descrip-
tion"
EC-300
< SYMPTOM DIAGNOSIS >
[HR12DE (TYPE 1)]
ENGINE CONTROL SYSTEM SYMPTOMS
Air
Positive crankcase ventilation sys-
tem
3
3
4
4
4
4
4
4
4
4
1
EC-15,
"Positive
Crankcase
Ventilation"
Incorrect idle speed adjustment
1
1
1
1
1
Electric throttle control actuator
1
1
2
3
3
2
2
2
2
2
2
EC-260,
"DTC Log-
ic"
EC-264,
"DTC Log-
ic"
EC-266,
"DTC Log-
ic"
Ignition
Incorrect ignition timing adjustment
3
3
1
1
1
1
1
1
Ignition signal circuit
1
1
2
2
2
2
2
2
EGR
EGR volume control valve circuit
2
2
3
3
3
2
2
3
3
EGR system
2
1
Main power supply and ground circuit
2
2
3
3
3
3
3
2
3
SYMPTOM
Reference
page
HARD/NO S
T
A
R
T/RES
T
A
R
T (E
XCP
. HA)
E
N
GINE
ST
ALL
HES
IT
A
TION/SURGING/FLA
T
SPOT
S
P
ARK KNOC
K
/DET
O
NA
TI
ON
LACK OF
POWER/POOR ACCELERA
TION
HIG
H
IDL
E
/L
OW
ID
LE
ROUGH IDLE/HUNTING
ID
LING VI
BRA
T
ION
S
L
OW/NO RETU
RN
T
O
ID
LE
OVERHEA
T
S
/W
A
TER TEMPERA
T
URE HIG
H
E
X
CESSIVE
FUEL CON
S
UMP
T
ION
E
X
CESSIVE
OIL
C
O
NSUMP
T
ION
B
A
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
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