Infiniti F50. Instruction - page 61

DTC P0745 LINE PRESSURE SOLENOID VALVE

AT-129

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Diagnostic Procedure

ECS0084X

1.

CHECK LINE PRESSURE SOLENOID VALVE CIRCUIT

1.

Turn ignition switch to “OFF” position.

2.

Disconnect A/T unit assembly harness connector at the trans-
mission right side.

3.

Check the resistance between terminal and ground.

OK or NG

OK >> GO

TO

4.

NG

>> GO TO 2.

2.

CHECK TERMINAL CORD ASSEMBLY

1.

Remove oil pan. Refer to

AT-289, "Control Valve Assembly"

.

2.

Disconnect A/T unit assembly harness connector and control valve assembly harness connector.

3.

Check continuity between A/T unit assembly harness connector
and control valve assembly harness connector.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 3.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

3.

CHECK VALVE RESISTANCE

Check valve resistance

Refer to

AT-130, "Component Inspection"

.

OK or NG

OK >> GO

TO

5.

NG

>> Replace the control valve assembly. Refer to

AT-289, "Control Valve Assembly"

.

Solenoid valve

Connector No.

Terminal No.

(Wire color)

Resistance

(Approx.)

Line pressure solenoid
valve

F27

7 (B/Y) - Ground

3 - 9

SCIA1833E

Item

Connector No.

Terminal No. (Wire color)

Continuity

A/T unit assembly
harness connector

F27

7 (R/G)

Yes

Control valve assem-
bly harness connec-
tor

F301

10 (R/G)

SCIA3065E

AT-130

DTC P0745 LINE PRESSURE SOLENOID VALVE

4.

CHECK POWER SOURCE CIRCUIT

1.

Turn ignition switch to “OFF” position.

2.

Disconnect TCM connector.

3.

Check continuity between A/T unit assembly harness connector
and TCM connector.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 5.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

5.

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to

AT-127, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

6.

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

2.

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

Component Inspection

ECS00A1M

LINE PRESSURE SOLENOID VALVE
Resistance check

1.

Turn ignition switch “OFF”.

2.

Remove oil pan. Refer to

AT-289, "Control Valve Assembly"

.

3.

Disconnect control valve assembly harness connector.

4.

Check resistance between terminal and ground.

5.

If NG, replace control valve assembly. Refer to

AT-289, "Control

Valve Assembly"

.

Item

Connector No.

Terminal No.

(Wire color)

Continuity

TCM

F103

1 (B/Y)

Yes

A/T unit assembly harness
connector

F27

7 (B/Y)

SCIA1834E

Solenoid Valve

Connector No.

Terminal No.

(Wire color)

Resistance (

)

(Approx.)

Line pressure solenoid
valve

F301

10 (OR) -

Ground

3 - 9

SCIA3066E

DTC P0745 LINE PRESSURE SOLENOID VALVE

AT-131

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Operation check

Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 10 and ground.

SCIA3067E

AT-132

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

PFP:31036

Description

ECS0084Y

When the power supply to the TCM is cut “OFF”, for example because the battery is removed, and the self-
diagnostics memory function stops, malfunction is detected.

On Board Diagnosis Logic

ECS0084Z

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “TCM-POWER SUPPLY” with CONSULT-II is detected when TCM does not
receive the voltage signal from the battery power supply.

This is not a malfunction message. (Whenever shutting “OFF” a power supply to the TCM, this message
appears on the screen.)

Possible Cause

ECS00850

Harness or connectors
(Battery or ignition switch and TCM circuit is open or shorted.)

DTC Confirmation Procedure

ECS00851

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.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Wait for at least 2 consecutive seconds.

4.

If DTC is detected, go to

AT-136, "Diagnostic Procedure"

.

SAT014K

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