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Infiniti G35 (V35). Manual - part 46

MAIN POWER SUPPLY AND GROUND CIRCUIT

AT-175

CHECK TERMINAL CORD ASSEMBLY

Remove control valve with TCM. Refer to

AT-225, "Control Valve with TCM and A/T Fluid Temperature

Sensor 2"

Disconnect A/T assembly harness connector and TCM connector.

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

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

OK or NG

>> Replace control valve with TCM. Refer to

AT-225, "Control Valve with TCM and A/T Fluid Temper-

ature Sensor 2"

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

Item

Connector

Terminal

Continuity

A/T assembly harness connector

F40

Yes

TCM connector

F502

A/T assembly harness connector

F40

Yes

TCM connector

F502

A/T assembly harness connector

F40

Yes

TCM connector

F502

SCIA5464E

Item

Connector

Terminal

Continuity

A/T assembly harness connector

F40

Yes

TCM connector

F504

A/T assembly harness connector

F40

Yes

TCM connector

F504

SCIA5465E

AT-176

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

NCS000HQ

Diagnostic Procedure

NCS000HR

CHECK CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to

AT-86, "SELF-DIAGNOSTIC RESULT MODE"

AT-95, "Diagnostic Procedure

Without CONSULT-II"

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

YES

>> Check CAN communication line. Refer to

AT-98, "DTC U1000 CAN COMMUNICATION LINE"

>> GO TO 2.

CHECK THROTTLE POSITION SIGNAL CIRCUIT

With CONSULT-II

Turn ignition switch ON.

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

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

OK or NG

>> INSPECTION END

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

●

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

EC-121, "CONSULT-II Func-

tion (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

Fully depressed accelerator pedal

OFF

W/O THL POS

Fully depressed accelerator pedal

Released accelerator pedal

OFF

Accelerator Pedal Operation

Monitor Item

CLSD THL POS

W/O THL POS

Released

OFF

Fully depressed

OFF

PCIA0070E

BRAKE SIGNAL CIRCUIT

AT-177

BRAKE SIGNAL CIRCUIT

PFP:25320

CONSULT-II Reference Value

NCS000HS

Diagnostic Procedure

NCS000HT

CHECK CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to

AT-86, "SELF-DIAGNOSTIC RESULT MODE"

AT-95, "Diagnostic Procedure

Without CONSULT-II"

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

YES

>> Check CAN communication line. Refer to

AT-98, "DTC U1000 CAN COMMUNICATION LINE"

>> GO TO 2.

CHECK STOP LAMP SWITCH CIRCUIT

With CONSULT-II

Turn ignition switch ON.

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

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

OK or NG

>> INSPECTION END

>> GO TO 3.

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch harness connector E124
terminals 3 and 4. Refer to

AT-179, "Wiring Diagram — AT — NON-

DTC"

Check stop lamp switch after adjusting brake pedal — refer to

BR-6, "BRAKE PEDAL"

OK or NG

>> Check the following items. If NG, repair or replace dam-

aged parts.

●

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

●

Harness for short or open between stop lamp switch and combination meter.

●

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

>> Repair or replace the stop lamp switch.

Item name

Condition

Display value

BRAKE SW

Depressed brake pedal

Released brake pedal

OFF

Item name

Condition

Display value

BRAKE SW

Depressed brake pedal

Released brake pedal

OFF

PCIA0070E

Condition

Continuity

When brake pedal is depressed

Yes

When brake pedal is released

SCIA4669E

AT-178

A/T INDICATOR CIRCUIT

PFP:24810

Description

NCS000HU

TCM sends the switch signals to combination meters. By CAN communication line. Then manual mode switch
position is indicated on the A/T indicator.

CONSULT-II Reference Value

NCS000HV

Diagnostic Procedure

NCS000HW

CHECK INPUT SIGNALS

With CONSULT-II

Start engine.

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

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

>> INSPECTION END

>> 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-160, "DTC P1815 MANUAL MODE SWITCH"

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

●

Refer to

AT-86, "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