Infiniti QX56 (JA60). Manual - part 959
TM-138
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
48
Others
Shift point is low in “D”
position.
ON vehicle
1. Output speed sensor and vehicle speed signal
,
2. Accelerator pedal position sensor
3. CAN communication line
4. Control valve with TCM
49
Judder occurs during
lock-up.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. Input speed sensor
4. Output speed sensor and vehicle speed signal
,
5. Accelerator pedal position sensor
6. CAN communication line
7. Torque converter clutch solenoid valve
8. Control valve with TCM
OFF vehicle
9. Torque converter
50
Strange noise in “R”
position.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
8. High and low reverse clutch
9. Reverse brake
51
Strange noise in “N”
position.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
52
Strange noise in “D”
position.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
8. Forward brake (Parts behind drum support is impossible to
perform inspection by disassembly. Refer to
.
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page