Nissan Titan. Manual — part 590

DIAGNOSIS SYSTEM (TCM)

TM-43

< SYSTEM DESCRIPTION >

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Diagnosis Procedure without CONSULT (Floor Shift Models)

INFOID:0000000009885701

OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Refer to

EC-46, "On Board Diagnosis Function"

.

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description

When the ignition switch is switched “ON”, the A/T CHECK indicator lamp lights up for 2 seconds. As a method

for locating the suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction

location is output and the A/T CHECK indicator lamp flashes to display the corresponding DTC.

Diagnostic Procedure

1.

CHECK A/T CHECK INDICATOR LAMP

1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.

2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.

3. Wait 10 seconds.

4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?

YES

>> GO TO 2.

NO

>> Go to

TM-143, "Symptom Table"

.

2.

JUDGMENT PROCEDURE STEP 1

1. Turn ignition switch OFF.

2. Keep pressing shift lock release button.

3. Move selector lever from “P” to “D” position.

4. Release accelerator pedal. (Set the closed throttle position signal “ON”.)

5. Depress brake pedal. (Stop lamp switch signal “ON”.)

6. Turn ignition switch ON. (Do not start engine.)

7. Wait 3 seconds.

8. Move the selector lever from “D” to “3” position.

9. Release brake pedal. (Stop lamp switch signal “OFF”.)

10. Move the selector lever from “3” to “2” position.

11. Depress brake pedal. (Stop lamp switch signal “ON”.)

12. Depress accelerator pedal fully and release it.

DTC work support item

Description

Check item

1ST GR FNCTN P0731

Following items for “1GR incorrect ratio” be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed

or not)

• Self-diagnosis result (OK or NG)

• Input clutch solenoid valve
• Front brake solenoid valve
• Direct clutch solenoid valve
• High and low reverse clutch

solenoid valve

• Each clutch
• Hydraulic control circuit

valve

2ND GR FNCTN P0732

Following items for “2GR incorrect ratio” be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed

or not)

• Self-diagnosis result (OK or NG)

3RD GR FNCTN P0733

Following items for “3GR incorrect ratio” be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed

or not)

• Self-diagnosis result (OK or NG)

4TH GR FNCTN P0734

Following items for “4GR incorrect ratio” be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed

or not)

• Self-diagnosis result (OK or NG)

5TH GR FNCTN P0735

Following items for “5GR incorrect ratio” be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed

or not)

• Self-diagnosis result (OK or NG)

TM-44

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (TCM)

>> GO TO 3.

3.

CHECK SELF-DIAGNOSIS CODE

Check A/T CHECK indicator lamp.

Refer to "Judgment Self-diagnosis Code".

If the system does not go into self-diagnostics. Refer to

TM-53, "Diagnosis Procedure"

,

TM-109, "Diagnosis

Procedure"

,

TM-110, "Diagnosis Procedure"

.

>> DIAGNOSIS END

Judgment Self-diagnosis Code

If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.

Erase Self-diagnosis

JPDIA0024GB

No.

Malfunctioning item

No.

Malfunctioning item

1

Output speed sensor

TM-58

12

Interlock

TM-86

2

Direct clutch solenoid

TM-94

13

1st engine braking

TM-88

3

Torque converter

TM-73

,

TM-75

14

Starter relay

TM-49

4

Line pressure solenoid

TM-77

15

TP sensor

TM-79

5

Input clutch solenoid

TM-90

16

Engine speed

TM-61

6

Front brake solenoid

TM-92

17

CAN communication line

TM-48

7

Low coast brake solenoid

TM-98

,

TM-100

18

1GR incorrect ratio

TM-63

8

High and low reverse clutch solenoid

TM-96

19

2GR incorrect ratio

TM-65

9

Transmission range switch

TM-53

20

3GR incorrect ratio

TM-67

10

Transmission fluid temperature sensor

TM-81

21

4GR incorrect ratio

TM-69

11

Input speed sensor

TM-56

22

5GR incorrect ratio

TM-71

DIAGNOSIS SYSTEM (TCM)

TM-45

< SYSTEM DESCRIPTION >

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• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is

stored into the control unit as necessary during use by the user. This memory is not erased no matter how

many times the ignition switch is turned ON and OFF.

• However, this information is erased by turning ignition switch OFF after executing self-diagnostics or by

erasing the memory using the CONSULT.

Diagnosis Procedure without CONSULT (Column Shift Models)

INFOID:0000000009885702

OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Refer to

EC-46, "On Board Diagnosis Function"

.

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description

When the ignition switch is switched “ON”, the A/T CHECK indicator lamp lights up for 2 seconds. As a method

for locating the suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction

location is output and the A/T CHECK indicator lamp flashes to display the corresponding DTC.

Diagnostic Procedure

1.

CHECK A/T CHECK INDICATOR LAMP

1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.

2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.

3. Wait 10 seconds.

4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?

YES

>> GO TO 2.

NO

>> Go to

TM-143, "Symptom Table"

.

2.

JUDGMENT PROCEDURE STEP 1

1. Turn ignition switch OFF.

2. Keep pressing shift lock release button.

3. Move selector lever from “P” to “D” position.

4. Release accelerator pedal. (Set the closed throttle position signal “ON”.)

5. Depress brake pedal. (Stop lamp switch signal “ON”.)

6. Turn ignition switch ON. (Do not start engine.)

7. Wait 3 seconds.

8. Move the selector lever from “D” to “M” position.

9. Release brake pedal. (Stop lamp switch signal “OFF”.)

10. Move the selector lever from “M” to “D” position.

11. Depress brake pedal. (Stop lamp switch signal “ON”.)

12. Depress accelerator pedal fully and release it.

>> GO TO 3.

3.

CHECK SELF-DIAGNOSIS CODE

Check A/T CHECK indicator lamp.

Refer to "Judgment Self-diagnosis Code".

If the system does not go into self-diagnostics. Refer to

TM-53, "Diagnosis Procedure"

,

TM-109, "Diagnosis

Procedure"

,

TM-110, "Diagnosis Procedure"

.

>> DIAGNOSIS END

Judgment Self-diagnosis Code

TM-46

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (TCM)

If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.

Erase Self-diagnosis

• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is

stored into the control unit as necessary during use by the user. This memory is not erased no matter how

many times the ignition switch is turned ON and OFF.

• However, this information is erased by turning ignition switch OFF after executing self-diagnostics or by

erasing the memory using the CONSULT.

JPDIA0024GB

No.

Malfunctioning item

No.

Malfunctioning item

1

Output speed sensor

TM-58

12

Interlock

TM-86

2

Direct clutch solenoid

TM-94

13

1st engine braking

TM-88

3

Torque converter

TM-73

,

TM-75

14

Starter relay

TM-49

4

Line pressure solenoid

TM-77

15

TP sensor

TM-79

5

Input clutch solenoid

TM-90

16

Engine speed

TM-61

6

Front brake solenoid

TM-92

17

CAN communication line

TM-48

7

Low coast brake solenoid

TM-98

,

TM-100

18

1GR incorrect ratio

TM-63

8

High and low reverse clutch solenoid

TM-96

19

2GR incorrect ratio

TM-65

9

Transmission range switch

TM-53

20

3GR incorrect ratio

TM-67

10

Transmission fluid temperature sensor

TM-81

21

4GR incorrect ratio

TM-69

11

Input speed sensor

TM-56

22

5GR incorrect ratio

TM-71

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Политика конфиденциальности