Nissan Murano Z51. Instruction — part 582
EC-336
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0550 PSP SENSOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
3.
CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between PSP sensor harness connector and ECM harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit, short to ground short to power in harness or connectors.
4.
CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between PSP sensor 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 5.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
CHECK PSP SENSOR
EC-336, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace PSP sensor.
6.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000005536728
1.
CHECK POWER STEERING PRESSURE SENSOR
1.
Reconnect all harness connectors disconnected.
2.
Start engine and let it idle.
3.
Check the voltage between ECM terminals under the following conditions.
Is the inspection result normal?
PSP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F62
1
F8
48
Existed
PSP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F62
2
F8
41
Existed
ECM
Condition
Voltage
Connector
+
–
Terminal
Terminal
F8
41
(Power steering pressure
sensor signal)
48
(Sensor ground)
Steering wheel: Being turned.
0.5 - 4.5 V
Steering wheel: Not being turned.
0.4 - 0.8 V
P0550 PSP SENSOR
EC-337
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> INSPECTION END
NO
>> Replace power steering pressure sensor.
EC-338
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0603 ECM POWER SUPPLY
P0603 ECM POWER SUPPLY
Description
INFOID:0000000005536729
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air vol-
ume learning value memory, etc.
DTC Logic
INFOID:0000000005536730
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 10 second.
2.
Turn ignition switch OFF and wait at least 5 minutes.
3.
Turn ignition switch ON, wait at least 10 seconds.
4.
Repeat steps 2 and 3 for five times.
5.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005536731
1.
CHECK ECM POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the voltage between ECM harness connector terminals.
PBIA9222J
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0603
ECM power supply cir-
cuit
ECM back up RAM system does not function
properly.
• Harness or connectors
[ECM power supply (back up) circuit is
open or shorted.]
• ECM
P0603 ECM POWER SUPPLY
EC-339
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
• 15 A fuse (No. 50)
• IPDM E/R harness connector F12
• Harness for open or short between ECM and battery
>> Repair or replace harness or connectors.
3.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness or connectors.
4.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC CONFIRMATION PROCEDURE.
See
.
Is the 1st trip DTC P0603 displayed again?
YES
>> GO TO 5.
NO
>> INSPECTION END
5.
REPLACE ECM
1.
Replace ECM.
2.
Go to
EC-16, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
.
>> INSPECTION END
ECM
Voltage
+
–
Connector
Terminal
Connector
Terminal
F8
77
E16
112
Battery voltage
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст