Nissan Frontier D22. Manual — part 649
DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE
EC-1699
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
UBS00E29
WITHOUT VDC
BBWA1095E
EC-1700
[VG33ER]
DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than the ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
7
Y/G
A/T check signal
[Ignition switch: ON]
[Engine is running]
0 - 3.0V
DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE
EC-1701
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
WITH VDC
BBWA0503E
EC-1702
[VG33ER]
DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than the ECM terminals, such as the ground.
Diagnostic Procedure
UBS00E2A
1.
CHECK A/T DIAGNOSIS COMMUNICATION LINE INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector and TCM (Transmission
Control Module) harness connector.
3.
Check harness continuity between ECM terminal 7 and TCM
terminal 15. Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
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 INTERMITTENT INCIDENT
EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
68
W/G
A/T signal
[Ignition switch: ON]
●
Idle speed
0 - 5.0V
LEC106A
Continuity should exist.
AEC655A
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