Infiniti G35 (V35). Manual — part 404
DTC P0605 ECM
EC-497
C
D
E
F
G
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I
J
K
L
M
A
EC
PROCEDURE FOR MALFUNCTION B
With CONSULT-II
1.
Turn ignition switch ON and wait at least 1 second.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
4.
If 1st trip DTC is detected, go to
EC-497, "Diagnostic Procedure"
.
With GST
Follow the procedure “With CONSULT-II” above.
PROCEDURE FOR MALFUNCTION C
With CONSULT-II
1.
Turn ignition switch ON and wait at least 1 second.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
4.
Repeat step 3 for 32 times.
5.
If 1st trip DTC is detected, go to
EC-497, "Diagnostic Procedure"
.
With GST
Follow the procedure “With CONSULT-II” above.
Diagnostic Procedure
NBS000V2
1.
INSPECTION START
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “SELF DIAG RESULTS” mode with CONSULT-II.
3.
Touch “ERASE”.
4.
Perform DTC Confirmation Procedure.
See
EC-496, "DTC Confirmation Procedure"
.
5.
Is the 1st trip DTC P0605 displayed again?
With GST
1.
Turn ignition switch ON.
2.
Select Service $04 with GST.
3.
Perform DTC Confirmation Procedure.
See
EC-496, "DTC Confirmation Procedure"
.
4.
Is the 1st trip DTC P0605 displayed again?
Yes or No
Yes
>> GO TO 2.
No
>> INSPECTION END
SEF058Y
SEF058Y
EC-498
DTC P0605 ECM
2.
REPLACE ECM
1.
Replace ECM.
2.
Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to
BL-217, "ECM Re-Communicating Function"
.
3.
Perform
4.
Perform
EC-78, "Exhaust Valve Timing Control Learning (M/T models)"
.
5.
Perform
EC-79, "Accelerator Pedal Released Position Learning"
.
6.
Perform
EC-79, "Throttle Valve Closed Position Learning"
7.
Perform
EC-79, "Idle Air Volume Learning"
>> INSPECTION END
DTC P0643 SENSOR POWER SUPPLY
EC-499
C
D
E
F
G
H
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K
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M
A
EC
DTC P0643 SENSOR POWER SUPPLY
PFP:18919
On Board Diagnosis Logic
NBS000XT
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation Procedure
NBS000XU
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V at idle.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Start engine and let it idle for 1 second.
4.
EC-502, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P0643
0643
Sensor power supply
circuit short
ECM detects a voltage of power source for
sensor is excessively low or high.
●
Harness or connectors
(The APP sensor 1 circuit is shorted.)
(The EVAP control system pressure sensor
circuit is shorted.)
(The PSP sensor circuit is shorted.)
(The refrigerant pressure sensor circuit is
shorted.)
●
Accelerator pedal position sensor
(APP sensor 1)
●
EVAP control system pressure sensor
●
Power steering pressure sensor
●
Refrigerant pressure sensor
Engine operation condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.
SEF058Y
EC-500
DTC P0643 SENSOR POWER SUPPLY
Wiring Diagram
NBS000XV
TBWB0083E
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