Nissan Frontier D22. Manual — part 622
DTC P0600 A/T COMMUNICATION LINE
EC-1591
[VG33ER]
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EC
Diagnostic Procedure
UBS00DZL
1.
CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector and TCM (Transmission
Control Module) harness connector.
3.
Check harness continuity between ECM terminal 26 and TCM
terminal 5, ECM terminal 27 and TCM terminal 6, ECM terminal
35 and TCM terminal 7.
Refer to Wiring Diagram.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M58, F28
●
Harness for open or short between ECM and TCM (Transmission Control Module)
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR SHORT
1.
Check harness continuity between ECM terminal 26 and ground, ECM terminal 27 and ground, ECM ter-
minal 35 and ground.
Refer to Wiring Diagram.
2.
Also check harness for short to power.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
68
W/G
A/T signal
[Engine is running]
●
Idle speed
Approximately 0 - 5.0V
LEC106A
Continuity should exist.
AEC655A
Continuity should not exist.
EC-1592
[VG33ER]
DTC P0600 A/T COMMUNICATION LINE
4.
DETECT MALFUNCTIONING PART
Check the harness for open or short between ECM and TCM (Transmission Control Module).
>> Repair open circuit or short to ground or short to power in harness.
5.
CHECK INTERMITTENT INCIDENT
EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END.
DTC P0605 ECM
EC-1593
[VG33ER]
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EC
DTC P0605 ECM
PFP:23710
Component Description
UBS00DZM
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
UBS00DZN
DTC Confirmation Procedure
UBS00DZO
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Start engine.
4.
Run engine for at least 2 seconds at idle speed.
5.
If 1st trip DTC is detected, go to
WITH GST
Follow the procedure “WITH CONSULT-II”.
SEC220B
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0605
Engine control module
ECM calculation function is malfunctioning.
●
ECM
SEF058Y
EC-1594
[VG33ER]
DTC P0605 ECM
Diagnostic Procedure
UBS00DZP
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-1593, "DTC Confirmation Procedure"
5.
Is the 1st trip DTC P0605 displayed again?
With GST
1.
Turn ignition switch ON.
2.
Select MODE 4 with GST.
3.
Touch “ERASE”.
4.
Perform DTC Confirmation Procedure.
See
EC-1593, "DTC Confirmation Procedure"
5.
Is the 1st trip DTC P0605 displayed again?
Yes or No
Yes
>> Replace ECM.
No
>> INSPECTION END.
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