Juke F15 (2012 year). Service Repair Manual — part 171
P0470 EXHAUST GAS PRESSURE SENSOR 1
EC-945
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace exhaust gas pressure sensor 1.
NO
>> Repair or replace.
Exhaust gas pressure sensor 1
ECM
Continuity
Connector
Terminal
Connector
Terminal
F67
2
F58
42
Existed
EC-946
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0471 EXHAUST GAS PRESSURE SENSOR 1
P0471 EXHAUST GAS PRESSURE SENSOR 1
DTC Logic
INFOID:0000000006496632
DTC DETECTION LOGIC
NOTE:
If DTC P0471 is displayed with DTC P0470 or P2226, first perform trouble diagnosis for DTC P0470 or P2226.
Refer to
Diagnosis Procedure
INFOID:0000000006496633
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
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 EXHAUST GAS PRESSURE SENSOR 1 AND EXHAUST GAS PIPE INSTALLATION
Check exhaust gas pressure sensor and exhaust gas pipe for poor installation and damage.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Install exhaust gas pressure sensor and exhaust gas pipe properly.
3.
CHECK EXHAUST GAS PRESSURE SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect exhaust pressure sensor 1 harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between exhaust gas pressure sensor 1 harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK EXHAUST GAS PRESSURE SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
Check the continuity between exhaust gas pressure sensor 1 harness connector and ECM harness con-
nector.
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK EXHAUST PRESSURE SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
DTC No.
Trouble diagnosis name
Possible cause
P0471
Exhaust gas pressure sensor 1
• 1.DEF: Incorrect sensor mounting
• 2.DEF: Implausible signal
• Exhaust gas pressure sensor 1
• Exhaust gas pipe (Between Exhaust gas pressure sen-
sor 1 and Exhaust manifold)
Exhaust gas pressure sensor 1
Ground
Voltage
Connector
Terminal
F67
3
Ground
Approx. 5 V
Exhaust gas pressure sensor 1
ECM
Continuity
Connector
Terminal
Connector
Terminal
F67
1
F58
23
Existed
P0471 EXHAUST GAS PRESSURE SENSOR 1
EC-947
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
Check the continuity between exhaust gas pressure sensor 1 harness connector and ECM harness con-
nector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace exhaust gas pressure sensor 1.
NO
>> Repair or replace.
Exhaust gas pressure sensor 1
ECM
Continuity
Connector
Terminal
Connector
Terminal
F67
2
F58
42
Existed
EC-948
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P047A EXHAUST GAS PRESSURE SENSOR 2
P047A EXHAUST GAS PRESSURE SENSOR 2
DTC Logic
INFOID:0000000006496634
DTC DETECTION LOGIC
NOTE:
If DTC P047A is displayed with DTC P0651, first perform trouble diagnosis for DTC P0651. Refer to
Diagnosis Procedure
INFOID:0000000006496635
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
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 EXHAUST GAS PRESSURE SENSOR 2 POWER SUPPLY CIRCUIT
1.
Disconnect exhaust gas pressure sensor 2 harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between exhaust pressure sensor 2 harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK EXHAUST GAS PRESSURE SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
Check the continuity between exhaust gas pressure sensor 2 harness connector and ECM harness con-
nector.
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK EXHAUST GAS PRESSURE SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between exhaust gas pressure sensor 2 harness connector and ECM harness con-
nector.
DTC No.
Trouble diagnosis name
Possible cause
P047A
Exhaust gas pressure sensor 2 circuit
• 1.DEF: Signal outside lower limit
• 2.DEF: Signal outside upper limit
• Harness or connectors
(The exhaust gas pressure sensor 2 circuit is open or
shorted.)
• Exhaust gas pressure sensor 2
Exhaust gas pressure sensor 2
Ground
Voltage
Connector
Terminal
F75
1
Ground
Approx. 5 V
Exhaust gas pressure sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F75
2
F58
31
Existed
P047A EXHAUST GAS PRESSURE SENSOR 2
EC-949
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace exhaust gas pressure sensor 2.
NO
>> Repair or replace.
Exhaust gas pressure sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F75
3
F58
53
Existed
EC-950
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P047B EXHAUST GAS PRESSURE SENSOR 2
P047B EXHAUST GAS PRESSURE SENSOR 2
DTC Logic
INFOID:0000000006496636
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496637
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
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 EXHAUST GAS PRESSURE SENSOR 2 POWER SUPPLY CIRCUIT
1.
Disconnect exhaust gas pressure sensor 2 harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between exhaust pressure sensor 2 harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK EXHAUST GAS PRESSURE SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
Check the continuity between exhaust gas pressure sensor 2 harness connector and ECM harness con-
nector.
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK EXHAUST GAS PRESSURE SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between exhaust gas pressure sensor 2 harness connector and ECM harness con-
nector.
2.
Also check harness for short to ground and short to power.
DTC No.
Trouble diagnosis name
Possible cause
P047B
Exhaust gas pressure sensor 2 circuit
• 1.DEF: Signal incoherence.
• 2.DEF: Signal detected outside upper or
lower limit.
• Harness or connectors
(The exhaust gas pressure sensor 2 circuit is open or
shorted.)
• Exhaust gas pressure sensor 2
Exhaust gas pressure sensor 2
Ground
Voltage
Connector
Terminal
F75
1
Ground
Approx. 5 V
Exhaust gas pressure sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F75
2
F58
31
Existed
Exhaust gas pressure sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F75
3
F58
53
Existed
P047B EXHAUST GAS PRESSURE SENSOR 2
EC-951
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace exhaust gas pressure sensor 2.
NO
>> Repair or replace.
EC-952
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0487 EGR VOLUME CONTROL VALVE
P0487 EGR VOLUME CONTROL VALVE
DTC Logic
INFOID:0000000006496638
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496639
1.
CHECK EGR VOLUME CONTROL VALVE CONTROL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect EGR volume control valve harness connector and ECM harness connector.
3.
Check the continuity between EGR volume control valve terminal harness connector and ECM harness
connector.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 2.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
2.
CHECK EGR VOLUME CONTROL VALVE
EC-952, "Component Inspection"
OK or NG
OK
>> GO TO 3.
NG
>> Replace EGR volume control valve. Refer to
3.
CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR
EC-952, "Component Inspection"
OK or NG
OK
>> GO TO 4.
NG
>> Replace EGR volume control valve. Refer to
4.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000006496640
EGR VOLUME CONTROL VALVE
DTC No.
Trouble diagnosis name
Possible cause
P0487
EGR VOLUME CONTROL VALVE CIRCUIT
• Harness or connectors
(The EGR volume control valve circuit is open
or shorted.)
• EGR volume control valve (DC motor)
• EGR volume control valve control position
sensor
EGR volume control valve terminal
ECM
Continuity
Connector
Terminal
Connector
Terminal
F88
1
F58
32
Existed
2
14
3
59
5
38
6
13
P0487 EGR VOLUME CONTROL VALVE
EC-953
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
Disconnect EGR volume control valve harness connector.
2.
Check resistance EGR volume control valve harness connector.
If NG, replace EGR volume control valve. Refer to
.
EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR
1.
Disconnect EGR volume control valve harness connector.
2.
Check continuity EGR volume control valve harness connector.
If NG, replace EGR volume control valve. Refer to
.
EGR volume control valve
Resistance
Connector
Terminal
Connector
Terminal
F88
2
F88
6
2.3
Ω
[at 25
°
C (77
°
F)]
EGR volume control valve
Continuity
Connector
Terminal
Connector
Terminal
F88
1
F88
3
Continuity should exist.
EC-954
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0488 EGR SYSTEM
P0488 EGR SYSTEM
DTC Logic
INFOID:0000000006496641
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496642
1.
CHECK EGR VOLUME CONTROL VALVE CONTROL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect EGR volume control valve harness connector and ECM harness connector.
3.
Check the continuity between EGR volume control valve terminal harness connector and ECM harness
connector.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 2.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
2.
CHECK EGR VOLUME CONTROL VALVE
EC-954, "Component Inspection"
OK or NG
OK
>> GO TO 3.
NG
>> Replace EGR volume control valve. Refer to
3.
CHECK EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR
EC-954, "Component Inspection"
OK or NG
OK
>> GO TO 4.
NG
>> Replace EGR volume control valve. Refer to
4.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000006496643
EGR VOLUME CONTROL VALVE
DTC No.
Trouble diagnosis name
Possible cause
P0488
EGR VOLUME CONTROL
• 5.DEF: Valve locked
• 6.DEF: Valve locked
• Harness or connectors
(The EGR volume control valve circuit is open
or shorted.)
• EGR volume control valve (DC motor)
• EGR volume control valve control position
sensor
EGR volume control valve terminal
ECM
Continuity
Connector
Terminal
Connector
Terminal
F88
1
F58
32
Existed
2
14
3
59
5
38
6
13
P0488 EGR SYSTEM
EC-955
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
Disconnect EGR volume control valve harness connector.
2.
Check resistance EGR volume control valve harness connector.
If NG, replace EGR volume control valve. Refer to
.
EGR VOLUME CONTROL VALVE CONTROL POSITION SENSOR
1.
Disconnect EGR volume control valve harness connector.
2.
Check continuity EGR volume control valve harness connector.
If NG, replace EGR volume control valve. Refer to
.
EGR volume control valve
Resistance
Connector
Terminal
Connector
Terminal
F88
2
F88
6
2.3
Ω
[at 25
°
C (77
°
F)]
EGR volume control valve
Continuity
Connector
Terminal
Connector
Terminal
F88
1
F88
3
Continuity should exist.
EC-956
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0504 ASCD BRAKE SWITCH
P0504 ASCD BRAKE SWITCH
DTC Logic
INFOID:0000000006496644
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496645
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
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 ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1.
Disconnect ACSD brake switch harness connector.
2.
Check the voltage between ACSD brake switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between ACSD brake switch harness connector and ECM harness connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK ASCD BRAKE SWITCH
EC-957, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace ASCD brake switch.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace ACSD brake switch.
DTC No.
Trouble diagnosis name
Possible cause
P0504
ASCD brake switch circuit
• Harness or connectors
(The ASCD brake switch circuit is open or shorted.)
• ASCD brake switch
ACSD brake switch
Ground
Voltage
Connector
Terminal
M203 (RHD models)
E112 (LHD models)
1
Ground
Battery voltage
ACSD brake switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M203 (RHD models)
E112 (LHD models)
2
E32
148
Existed
P0504 ASCD BRAKE SWITCH
EC-957
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
NO
>> Repair or replace.
Component Inspection
INFOID:0000000006496646
1.
CHECK ASCD BRAKE SWITCH-I
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Check the continuity between ASCD brake switch terminals under the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ASCD brake switch.
ASCD brake switch
Condition
Continuity
Connector
Terminals
Connector
Terminal
M203
(RHD
models)
E112 (LHD
models)
1
M203
(RHD
models)
E112
(LHD
models)
2
ASCD brake switch
Depressed
Not existed
Released
Existed
EC-958
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0525 ASCD SYSTEM
P0525 ASCD SYSTEM
DTC Logic
INFOID:0000000006496647
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496648
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF and wait at least 20 seconds.
2.
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 ASCD BRAKE SWITCH AND CLUTCH PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1.
Disconnect ACSD brake switch and clutch pedal position switch harness connectors.
2.
Check the voltage between ACSD brake switch and clutch pedal position switch harness connectors and
ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT AND CLUTCH PEDAL POSITION SWITCH
GROUND CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between ACSD brake switch harness connector and ECM harness connector.
2.
Check the continuity between clutch pedal position switch harness connector and ground.
DTC No.
Trouble diagnosis name
Possible cause
P0525
• ASCD brake switch circuit
• Clutch pedal position switch circuit
• Harness or connectors
(The ASCD brake switch circuit is open or shorted.)
(The Clutch pedal position switch circuit is open or shorted.)
• ASCD brake switch
• Clutch pedal position switch
ACSD brake switch
Ground
Voltage
Connector
Terminal
M203 (RHD models)
E112 (LHD models)
1
Ground
Battery voltage
Clutch pedal position switch
Ground
Voltage
Connector
Terminal
M208 (RHD models)
E111 (LHD models)
3
Ground
Battery voltage
ACSD brake switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M203 (RHD models)
E112 (LHD models)
2
E32
148
Existed
P0525 ASCD SYSTEM
EC-959
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK ASCD BRAKE SWITCH AND CLUTCH PEDAL POSITION SWITCH
EC-959, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace ASCD brake switch or clutch pedal position switch.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace ACSD brake switch or clutch pedal position switch.
NO
>> Repair or replace.
Component Inspection
INFOID:0000000006496649
1.
CHECK ASCD BRAKE SWITCH-I
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Check the continuity between ASCD brake switch terminals under the following condition.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace ASCD brake switch.
2.
CHECK CLUTCH PEDAL POSITION SWITCH-I
1.
Turn ignition switch OFF.
2.
Disconnect clutch pedal position switch harness connector.
3.
Check the continuity between clutch pedal position switch terminals under the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace clutch pedal position switch.
Clutch pedal position switch
Ground
Continuity
Connector
Terminal
M208 (RHD models)
E111 (LHD models)
4
Ground
Existed
ASCD brake switch
Condition
Continuity
Connector
Terminals
Connector
Terminal
M203
(RHD
models)
E112 (LHD
models)
1
M203
(RHD
models)
E112
(LHD
models)
2
ASCD brake switch
Depressed
Not existed
Released
Existed
clutch pedal position switch
Condition
Continuity
Connector
Terminals
Connector
Terminal
M208 (RHD
models)
E111 (LHD
models)
3
M208 (RHD
models)
E111 (LHD
models)
4
clutch pedal position
switch
Depressed
Not existed
Released
Existed
EC-960
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0530 REFRIGERANT PRESSURE SENSOR
P0530 REFRIGERANT PRESSURE SENSOR
DTC Logic
INFOID:0000000006496650
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006496651
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
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 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.
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
DTC No.
Trouble diagnosis name
Possible cause
P0530
REFRIGERANT PRESSURE SENSOR CIRCUIT
• Harness or connectors
(Refrigerant pressure sensor circuit is
open or shorted.)
• Refrigerant pressure sensor
Refrigerant pressure sensor
Ground
Voltage
Connector
Terminal
E49
3
Ground
Approx. 5V
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E49
1
F58
35
Existed
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