Infiniti G37 Coupe. Manual - part 1338

 

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Infiniti G37 Coupe. Manual - part 1338

 

 

SYSTEM SYMPTOM

TM-205

< SYMPTOM DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

52

Others

Shift point is high in 
“D” position.

ON vehicle

1. Vehicle speed sensor A/T and vehicle speed sensor MTR

TM-125

TM-147

2. Accelerator pedal position sensor

TM-143

3. CAN communication line

TM-118

4. A/T fluid temperature sensor

TM-144

5. Control valve with TCM

TM-232

53

Shift point is low in “D” 
position.

ON vehicle

1. Vehicle speed sensor A/T and vehicle speed sensor MTR

TM-125

TM-147

2. Accelerator pedal position sensor

TM-143

3. CAN communication line

TM-118

4. Control valve with TCM

TM-232

54

Judder occurs during 
lock-up.

ON vehicle

1. A/T fluid level and state

TM-214

2. Engine speed signal

TM-128

3. Turbine revolution sensor

TM-124

4. Vehicle speed sensor A/T and vehicle speed sensor MTR

TM-125

TM-147

5. Accelerator pedal position sensor

TM-143

6. CAN communication line

TM-118

7. Torque converter clutch solenoid valve

TM-140

8. Control valve with TCM

TM-232

OFF vehicle

9. Torque converter

TM-308

55

Strange noise in “R” 
position.

ON vehicle

1. A/T fluid level and state

TM-214

2. Engine speed signal

TM-128

3. CAN communication line

TM-118

4. Control valve with TCM

TM-232

OFF vehicle

5. Torque converter

TM-308

6. Oil pump assembly

TM-310

7. Gear system

TM-266

8. High and low reverse clutch

TM-325

9. Reverse brake

TM-273

56

Strange noise in “N” 
position.

ON vehicle

1. A/T fluid level and state

TM-214

2. Engine speed signal

TM-128

3. CAN communication line

TM-118

4. Control valve with TCM

TM-232

OFF vehicle

5. Torque converter

TM-308

6. Oil pump assembly

TM-310

7. Gear system

TM-266

No.

Item

Symptom

Condition

Diagnostic item

Reference 

page

TM-206

< SYMPTOM DIAGNOSIS >

[5AT: RE5R05A]

SYSTEM SYMPTOM

57

Others

Strange noise in “D” 
position.

ON vehicle

1. A/T fluid level and state

TM-214

2. Engine speed signal

TM-128

3. CAN communication line

TM-118

4. Control valve with TCM

TM-232

OFF vehicle

5. Torque converter

TM-308

6. Oil pump assembly

TM-310

7. Gear system

TM-266

8. Forward brake (Parts behind drum support is impossible to 
perform inspection by disassembly. Refer to 

TM-91, "Cross-

Sectional View"

.)

TM-273

58

Vehicle does not de-
celerate by engine 
brake.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Manual mode switch

TM-157

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Input clutch

TM-315

8. High and low reverse clutch

TM-325

9. Direct clutch

TM-327

59

Engine brake does not 
work M5 

 M4.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Manual mode switch

TM-157

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Front brake (brake band) 

TM-266

60

Engine brake does not 
work M4 

 M3.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Manual mode switch

TM-157

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Front brake (brake band)

TM-266

8. Input clutch

TM-315

No.

Item

Symptom

Condition

Diagnostic item

Reference 

page

SYSTEM SYMPTOM

TM-207

< SYMPTOM DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

61

Others

Engine brake does not 
work M3 

 M2.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Manual mode switch

TM-157

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Front brake (brake band)

TM-266

8. Input clutch

TM-315

9. High and low reverse clutch

TM-325

62

Engine brake does not 
work M2 

 M1.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Manual mode switch

TM-157

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Input clutch

TM-315

8. High and low reverse clutch

TM-325

9. Direct clutch

TM-327

63

Maximum speed low.

ON vehicle

1. A/T fluid level and state

TM-214

2. Line pressure test

TM-220

3. Accelerator pedal position sensor

TM-143

4. CAN communication line

TM-118

5. Direct clutch solenoid valve

TM-152

6. Control valve with TCM

TM-232

OFF vehicle

7. Torque converter 

TM-308

8. Oil pump assembly

TM-310

9. Input clutch

TM-315

10. Gear system

TM-266

11. High and low reverse clutch

TM-325

12. Direct clutch

TM-327

13. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to 

TM-

91, "Cross-Sectional View"

.)

TM-273

14. Forward brake (Parts behind drum support is impossible 
to perform inspection by disassembly. Refer to 

TM-91, 

"Cross-Sectional View"

.)

TM-273

64

Extremely large creep.

ON vehicle

1. Engine idle speed 

EC-17

2. CAN communication line

TM-118

OFF vehicle

3. Torque converter

TM-308

No.

Item

Symptom

Condition

Diagnostic item

Reference 

page

TM-208

< SYMPTOM DIAGNOSIS >

[5AT: RE5R05A]

SYSTEM SYMPTOM

65

Others

With selector lever in 
“P” position, vehicle 
does not enter parking 
condition or, with se-
lector lever in another 
position, parking con-
dition is not cancelled.

ON vehicle

1. PNP switch

TM-122

2. A/T position

TM-226

OFF vehicle

3. Parking components

TM-245

66

Vehicle runs with A/T 
in “P” position.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Control valve with TCM

TM-232

OFF vehicle

5. Parking components

TM-245

6. Gear system

TM-266

67

Vehicle runs with A/T 
in “N” position.

ON vehicle

1. PNP switch

TM-122

2. A/T fluid level and state

TM-214

3. A/T position

TM-226

4. Control valve with TCM

TM-232

OFF vehicle

5. Input clutch

TM-315

6. Gear system

TM-266

7. Direct clutch

TM-327

8. Reverse brake

TM-273

9. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to 

TM-

91, "Cross-Sectional View"

.)

TM-273

10. Forward brake (Parts behind drum support is impossible 
to perform inspection by disassembly. Refer to 

TM-91, 

"Cross-Sectional View"

.)

TM-273

68

Engine does not start 
in “N” or “P” position.

ON vehicle

1. Push-button ignition switch and starter

PG-50

STR-9

2. A/T position

TM-226

3. PNP switch

TM-122

69

Engine starts in posi-
tions other than “N” or 
“P”.

ON vehicle

1. Push-button ignition switch and starter

PG-50

STR-9

2. A/T position

TM-226

3. PNP switch

TM-122

70

Engine stall.

ON vehicle

1. A/T fluid level and state

TM-214

2. Engine speed signal

TM-128

3. Turbine revolution sensor

TM-124

4. Torque converter clutch solenoid valve

TM-140

5. CAN communication line

TM-118

6. Control valve with TCM

TM-232

OFF vehicle

7. Torque converter

TM-308

No.

Item

Symptom

Condition

Diagnostic item

Reference 

page

 

 

 

 

 

 

 

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