Infiniti QX56 (JA60). Manual — part 942

TM-70

< COMPONENT DIAGNOSIS >

P0745 PRESSURE CONTROL SOLENOID A

2.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

TM-94, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

DETECT MALFUNCTIONING ITEM

Check the following items:

• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG

OK

>> Replace the control valve with TCM. Refer to

TM-172, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2 and Plug"

.

NG

>> Repair or replace damaged parts.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.

• Refer to

TM-69, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

P1705 TP SENSOR

TM-71

< COMPONENT DIAGNOSIS >

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P1705 TP SENSOR

Description

INFOID:0000000005148611

Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle

position sensor, etc. The actuator sends a signal to the ECM, and ECM sends signals to TCM with CAN com-

munication.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000005148612

On Board Diagnosis Logic

INFOID:0000000005148613

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

• Diagnostic trouble code “P1705 TP SENSOR” with CONSULT-III is detected when TCM does not receive

the proper accelerator pedal position signals (input by CAN communication) from ECM.

Possible Cause

INFOID:0000000005148614

Harness or connectors

(The sensor circuit is open or shorted.)

DTC Confirmation Procedure

INFOID:0000000005148615

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.

WITH CONSULT-III

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

2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3. Start engine and let it idle for 1 second.

4. If DTC is detected, go to

TM-71, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005148616

1.

CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis. Refer to

TM-32, "CONSULT-III Function (TRANSMISSION)"

.

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

YES

>> Check CAN communication line. Refer to

TM-40

.

NO

>> GO TO 2.

2.

CHECK DTC WITH TCM

With CONSULT-III

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

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3. Depress accelerator pedal and read out the value of “ACCELE POSI”.

4. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III. Refer to

TM-32, "CON-

SULT-III Function (TRANSMISSION)"

.

OK or NG

Item name

Condition

Display value (Approx.)

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

Item name

Condition

Display value (Approx.)

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

TM-72

< COMPONENT DIAGNOSIS >

P1705 TP SENSOR

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

CHECK DTC WITH ECM

With CONSULT-III

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

2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CONSULT-III. Refer to

TM-32, "CONSULT-III

Function (TRANSMISSION)"

.

OK or NG

OK

>> GO TO 4.

NG

>> Check the DTC detected item. Refer to

TM-119, "DTC No. Index"

.

• If CAN communication line is detected, go to

TM-40, "Description"

.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.

• Refer to

TM-71, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

5.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

TM-94, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6.

DETECT MALFUNCTIONING ITEM

Check the following items:

• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG

OK

>> Replace the control valve with TCM. Refer to

TM-172, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2 and Plug"

.

NG

>> Repair or replace damaged parts.

P1710 TRANSMISSION FLUID TEMPERATURE SENSOR

TM-73

< COMPONENT DIAGNOSIS >

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P1710 TRANSMISSION FLUID TEMPERATURE SENSOR

Description

INFOID:0000000005148617

The A/T fluid temperature sensor 1 detects the A/T fluid temperature and sends a signal to the TCM.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000005148618

On Board Diagnosis Logic

INFOID:0000000005148619

• This is an OBD-II self-diagnostic item.

• Diagnostic trouble code “P1710 FLUID TEMP SENSOR, P0710 FLUID TEMP SENSOR A” with CONSULT-

III is detected when TCM receives an excessively low or high voltage from the sensor.

Possible Cause

INFOID:0000000005148620

• Harness or connectors

(The sensor circuit is open or shorted.)

• A/T fluid temperature sensors 1

DTC Confirmation Procedure

INFOID:0000000005148621

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.

WITH CONSULT-III

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

2. Select “DATA MONITOR” mode for “ENGINE” with CONSULT-III.

3. Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to

maintain continuously.)

VHCL/S SE-A/T: 10 km/h (6 MPH) or more

ACCELE POSI: More than 1.0/8

SLCT LVR POSI: “D” position

4. If DTC is detected, go to

TM-73, "Diagnosis Procedure"

.

WITH GST

Follow the procedure “With CONSULT-III”.

Diagnosis Procedure

INFOID:0000000005148622

1.

CHECK A/T FLUID TEMPERATURE SENSOR 1 SIGNAL

With CONSULT-III

1. Start engine.

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3. Read out the value of “ATF TEMP SE 1”.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

Item name

Condition

°C (°F) Display

value

(Approx.)

ATF TEMP SE 1

0 (32) - 20 (68) - 80 (176)

3.3 - 2.7 - 0.9 V

Item name

Condition

°C (°F)

Display value (Approx.)

ATF TEMP SE 1

0 (32) - 20 (68) - 80 (176)

3.3 - 2.7 - 0.9 V