Infiniti FX35, FX50 (S51). Manual — part 855
P0603 ECM POWER SUPPLY
EC-961
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
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.
• Harness connectors M6, E106
• 15 A fuse (No. 50)
• IPDM E/R harness connector E7
• Harness for open or short between ECM and battery
>> Repair or replace harness or connectors.
3.
CHECK INTERMITTENT INCIDENT
GI-36, "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-579, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ECM) : Special Repair
.
>> INSPECTION END
ECM
Voltage
+
–
Connector
Terminal
Connector
Terminal
M160
118
M160
128
Battery voltage
EC-962
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P0605 ECM
P0605 ECM
Description
INFOID:0000000005237432
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
DTC Logic
INFOID:0000000005237433
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting 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 FOR MALFUNCTION A
1.
Turn ignition switch ON.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
1.
Turn ignition switch ON and wait at least 1 second.
2.
Turn ignition switch OFF, wait at least 10 seconds, and then turn it ON.
3.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> GO TO 4.
4.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1.
Turn ignition switch ON and wait at least 1 second.
2.
Turn ignition switch OFF, wait at least 10 seconds, and then turn it ON.
3.
Repeat step 2 for 32 times.
4.
Check 1st trip DTC.
Is 1st trip DTC detected?
JMBIA0057ZZ
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0605
Engine control module
A)
ECM calculation function is malfunctioning.
• ECM
B)
ECM EEP-ROM system is malfunctioning.
C)
ECM self shut-off function is malfunctioning.
P0605 ECM
EC-963
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005237434
1.
INSPECTION START
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC Confirmation Procedure.
See
.
Is the 1st trip DTC P0605 displayed again?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE ECM
1.
Replace ECM.
2.
Go to
EC-579, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ECM) : Special Repair
.
>> INSPECTION END
EC-964
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P0607 ECM
P0607 ECM
Description
INFOID:0000000005237435
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000005237436
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005237437
1.
INSPECTION START
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC Confirmation Procedure.
See
4.
Check DTC.
Is the DTC P0607 displayed again?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE ECM
1.
Replace ECM.
2.
Go to
EC-579, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ECM) : Special Repair
.
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0607
CAN communication bus
When detecting error during the initial diagnosis
of CAN controller of ECM.
• ECM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст