Infiniti M35/M45 Y50. Manual - part 65

 

  Index      Infiniti     Infiniti M35/M45 Y50 - service repair manual 2007 year

 

Search            copyright infringement  

 

 

 

 

 

 

 



 

 

Content   ..  63  64  65  66   ..

 

 

Infiniti M35/M45 Y50. Manual - part 65

 

 

MAIN POWER SUPPLY AND GROUND CIRCUIT

AT-183

D

E

F

G

H

I

J

K

L

M

A

B

AT

7. 

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

AT-236, "Control Valve With TCM and A/T Fluid Temperature

Sensor 2"

 .

2.

Disconnect A/T assembly harness connector and TCM connector.

3.

Check continuity between A/T assembly harness connector ter-
minals and TCM connector terminals.

4.

Check continuity between A/T assembly harness connector ter-
minals and TCM connector terminals.

5.

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

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

AT-236, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

NG

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

Item

Connector

Terminal

Continuity

A/T assembly harness con-
nector

F42

1

Yes

TCM connector 

F502

9

A/T assembly harness con-
nector

F42

2

Yes

TCM connector 

F502

10

A/T assembly harness con-
nector

F42

6

Yes

TCM connector 

F502

4

SCIA5464E

Item

Connector

Terminal

Continuity

A/T assembly harness con-
nector

F42

5

Yes

TCM connector 

F504

21

A/T assembly harness con-
nector

F42

10

Yes

TCM connector 

F504

22

SCIA5465E

AT-184

CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR-

CUIT

CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR-
CUIT

PFP:18002

CONSULT-II Reference Value

NCS001PR

Diagnostic Procedure

NCS001PS

1. 

CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis. Refer to 

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

 , 

AT-103, "Diagnostic Pro-

cedure without CONSULT-II"

 .

Is a malfunction in the CAN communication indicated in the results?

YES

>> Check CAN communication line. Refer to 

AT-105, "DTC U1000 CAN COMMUNICATION LINE"

 .

NO

>> GO TO 2.

2. 

CHECK THROTTLE POSITION SIGNAL CIRCUIT

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.

3.

Depress accelerator pedal and read out the value of “CLSD THL
POS” and “W/O THL POS”.

OK or NG

OK

>> INSPECTION END

NG

>> Check the following. If NG, repair or replace damaged parts.

Perform the self-diagnosis for “ENGINE” with CONSULT-II. Refer to 

EC-126, "SELF-DIAG

RESULTS MODE"

  (for VQ35DE engine), 

EC-829, "SELF-DIAG RESULTS MODE"

  (for

VK45DE engine).

Open circuit or short to ground or short to power in harness or connectors.

Pin terminals for damage or loose connection with harness connector.

Item name

Condition

Display value

CLSD THL POS

Released accelerator pedal.

ON

Fully depressed accelerator pedal.

OFF

W/O THL POS

Fully depressed accelerator pedal.

ON

Released accelerator pedal.

OFF

Accelerator Pedal Operation

Monitor Item

CLSD THL POS

W/O THL POS

Released

ON

OFF

Fully depressed

OFF

ON

PCIA0070E

BRAKE SIGNAL CIRCUIT

AT-185

D

E

F

G

H

I

J

K

L

M

A

B

AT

BRAKE SIGNAL CIRCUIT

PFP:25320

CONSULT-II Reference Value

NCS001PT

Diagnostic Procedure

NCS001PU

1. 

CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis. Refer to 

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

 , 

AT-103, "Diagnostic Pro-

cedure without CONSULT-II"

 .

Is a malfunction in the CAN communication indicated in the results?

YES

>> Check CAN communication line. Refer to 

AT-105, "DTC U1000 CAN COMMUNICATION LINE"

 .

NO

>> GO TO 2.

2. 

CHECK STOP LAMP SWITCH CIRCUIT

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.

3.

Read out ON/OFF switching action of the “BRAKE SW”.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 3.

3. 

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch harness connector termi-
nals. Refer to 

AT-187, "Wiring Diagram — AT — NONDTC"

 .

Check stop lamp switch after adjusting brake pedal — refer to

BR-6, "BRAKE PEDAL"

 .

OK or NG

OK

>> Check the following. If NG, repair or replace damaged 

parts.

Harness for short or open between battery and stop lamp switch.

Harness for short or open between stop lamp switch and unified meter and A/C amp.

10A fuse (No.20, located in fuse block).

NG

>> Repair or replace the stop lamp switch.

Item name

Condition

Display value

BRAKE SW

Depressed brake pedal.

ON

Released brake pedal.

OFF

Item name

Condition

Display value

BRAKE SW

Depressed brake pedal.

ON

Released brake pedal.

OFF

PCIA0070E

Condition

Continuity

When brake pedal is depressed

Yes

When brake pedal is released

No

SCIA4782E

AT-186

A/T INDICATOR CIRCUIT

A/T INDICATOR CIRCUIT

PFP:24810

Description

NCS001PV

TCM sends the switch signals to unified meter and A/C amp. By CAN communication line. Then manual mode
switch position is indicated on the A/T indicator.

CONSULT-II Reference Value

NCS001PW

Diagnostic Procedure

NCS001PX

1. 

CHECK INPUT SIGNALS 

 With CONSULT-II

1.

Start engine.

2.

Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II and read out the value of “GEAR”.

3.

Drive vehicle in the manual mode, and confirm that the actual
gear position and the meter's indication of the position mutually
coincide when the selector lever is shifted to the “+ (up)” or “-
(down)” side (1st 

 5th gear).

 OK or NG

OK

>> INSPECTION END

NG

>> Check the following.

A/T INDICATOR SYMPTOM CHART

Item name

Condition

Display value

GEAR

During driving

1, 2, 3, 4, 5

PCIA0065E

Items

Possible location of malfunction

The actual gear position does not change, or shifting into the 
manual mode is not possible (no gear shifting in the manual mode 
possible).
The A/T indicator is not indicated.

Manual mode switch 
Refer to 

AT-167, "DTC P1815 MANUAL MODE SWITCH"

 .

A/T main system (Fail-safe function actuated)

Refer to 

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

 .

The actual gear position changes, but the A/T indicator is not indi-
cated.

Perform the self-diagnosis function.

Refer to 

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

 .

The actual gear position and the indication on the A/T indicator do 
not coincide.

Perform the self-diagnosis function.

Refer to 

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

 .

Only a specific position or positions is/are not indicated on the A/T 
indicator.

Check the unified meter and A/C amp.
Refer to 

DI-5, "COMBINATION METERS"

 .

 

 

 

 

 

 

 

Content   ..  63  64  65  66   ..