Infiniti G35 (V35) Sedan. Manual — part 1365

TM-152

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1731 A/T 1ST ENGINE BRAKEING

P1731 A/T 1ST ENGINE BRAKEING

Description

INFOID:0000000000957071

Fail-safe function to prevent sudden decrease in speed by engine brake other than at M1 position.

DTC Logic

INFOID:0000000000957072

DTC DETECTION LOGIC

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

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously preformed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.

Is “P1731 A/T 1ST E/BRAKING” detected?

YES

>> Go to

TM-152, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957073

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

TM-168, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to

TM-240, "Exploded View"

.

NO

>> Repair or replace damaged parts.

DTC

Item

(CONSULT-III screen

terms)

A/T CHECK indicator
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P1731*

A/T 1ST E/BRAKING

13th

Each ATF pressure
switch and solenoid cur-
rent is monitor and if a
pattern is detected hav-
ing engine braking 1st
gear other than in the M1
position, a malfunction is
detected.

• Harness or connectors

(Sensor circuit is open
or shorted.)

• Low coast brake sole-

noid valve

• ATF pressure switch 2

ENGINE SPEED

: 1,200 rpm

GEAR

: “1” position

MANU MODE SW

: ON

P1752 INPUT CLUTCH SOLENOID VALVE

TM-153

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P1752 INPUT CLUTCH SOLENOID VALVE

Description

INFOID:0000000000957074

• The Input clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch,

vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be
shifted to the optimum position.

• The Input clutch solenoid valve controls the input clutch control valve in response to a signal sent from the

TCM.

DTC Logic

INFOID:0000000000957075

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.

Is “P1752 I/C SOLENOID/CIRC” detected?

YES

>> Go to

TM-153, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957076

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

TM-168, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to

TM-240, "Exploded View"

.

DTC

Item

(CONSULT-III screen

terms)

A/T CHECK indicator
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P1752*

I/C SOLENOID/CIRC

5th

• Normal voltage not ap-

plied to solenoid due
to cut line, short, or the
like.

• TCM detects as irregu-

lar by comparing tar-
get value with monitor
value.

• Harness or connectors

(Solenoid circuit is
open or shorted.)

• Input clutch solenoid

valve

ACCELE POSI

: 1.5/8 – 2.0/8

GEAR

: “3”

⇒

“4” (I/C ON/OFF)

SLCT LVR POSI

: “D” position

Driving location

: Driving the vehicle uphill (increased engine load) will help maintain the driving con-
ditions required for this test.

TM-154

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1752 INPUT CLUTCH SOLENOID VALVE

NO

>> Repair or replace damaged parts.

P1757 FRONT BRAKE SOLENOID VALVE

TM-155

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P1757 FRONT BRAKE SOLENOID VALVE

Description

INFOID:0000000000957077

• The front brake solenoid valve is controlled by the TCM in response to signals sent from the PNP switch,

vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be
shifted to the optimum position.

• The front brake solenoid valve controls the front brake control valve in response to a signal sent from the

TCM.

DTC Logic

INFOID:0000000000957078

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.

Is “P1757 FR/B SOLENOID/CIRC” detected?

YES

>> Go to

TM-155, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957079

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

TM-168, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to

TM-240, "Exploded View"

.

DTC

Item

(CONSULT-III screen

terms)

A/T CHECK indicator
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P1757*

FR/B SOLENOID/CIRC

6th

• Normal voltage not ap-

plied to solenoid due
to cut line, short, or the
like.

• TCM detects as irregu-

lar by comparing tar-
get value with monitor
value.

• Harness or connectors

(Solenoid circuit is
open or shorted.)

• Front brake solenoid

valve

ACCELE POSI

: 1.5/8 – 2.0/8

GEAR

: “3”

⇒

“4” (FR/B ON/OFF)

SLCT LVR POSI

: “D” position

Drive location

: Driving the vehicle uphill (increased engine load) will help maintain the driving condi-
tions required for this test.