Nissan Frontier D22. Manual - part 505

DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE

EC-1123

[VG33E]

C

D

E

F

G

H

I

J

K

L

M

A

EC

Wiring Diagram

UBS00DPV

WITHOUT VDC

BBWA1095E

EC-1124

[VG33E]

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.

TERMI-

NAL 

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-1125

[VG33E]

C

D

E

F

G

H

I

J

K

L

M

A

EC

WITH VDC

BBWA0503E

EC-1126

[VG33E]

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

UBS00DPW

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

Refer to 

EC-696, "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