2006 INFINITI M35 sensor

TROUBLE DIAGNOSIS
AT-69
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M4515
No Down
ShiftIn “D” or “M” position,
does not downshift to
3rd gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 3 and input clutch solenoid valveAT-174,
AT-147
4. ATF pressure switch 1 and front brake solenoid valveAT-172,
AT-151
5. CAN communication lineAT-105
6. Line pressure testAT- 5 5
7. Control valve with TCMAT-236
OFF vehicle 8. Input clutchAT-323
16In “D” or “M” position,
does not downshift to
2nd gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140

3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-178
,
AT-159
4. CAN communication lineAT-105
5. Line pressure testAT- 5 5
6. Control valve with TCMAT-236
OFF vehicle 7. High and low reverse clutchAT-335
17In “D” or “M” position,
does not downshift to
1st gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. CAN communication lineAT-105
5. Line pressure testAT- 5 5
6. Control valve with TCMAT-236
OFF vehicle 7. Direct clutchAT-337
No. Item Symptom Condition Diagnostic ItemReference
page

AT-70
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
18
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 1st
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. Direct clutch solenoid valveAT- 1 5 5
4. Line pressure testAT- 5 5
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. 3rd one-way clutchAT- 3 2 1
8. 1st one-way clutchAT- 3 2 9
9. Gear systemAT- 2 7 8
10. Reverse brakeAT- 2 9 8
11. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" o r
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 2 9 8
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
19When “D” or “M” posi-
tion, remains in 2nd
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. Low coast brake solenoid valveAT- 1 6 3
4. Line pressure testAT- 5 5
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. 3rd one-way clutchAT- 3 2 1
8. Gear systemAT- 2 7 8
9. Direct clutchAT- 3 3 7
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-71
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45
20
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 3rd
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. Line pressure testAT- 5 5
4. CAN communication lineAT-105
5. Control valve with TCMAT-236
OFF vehicle6. 3rd one-way clutchAT-321
7. Gear systemAT-278
8. High and low reverse clutchAT-335
9. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT- 1 8 , "
Cross-Sectional View (VK45DE Models for 2WD)" o r
AT- 1 9 , "
Cross-Sectional View (AWD Models)" .)AT-298
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT- 1 8 ,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT- 1 9 ,
"Cross-Sectional View (AWD Models)" .)AT-298
21When “D” or “M” posi-
tion, remains in 4th
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 3 and input clutch solenoid valveAT-174,
AT-147
4. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
5. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-178,
AT-159
6. Low coast brake solenoid valveAT-163
7. Front brake solenoid valveAT-151
8. Line pressure testAT- 5 5
9. CAN communication lineAT-105
10. Control valve with TCMAT-236
OFF vehicle11. Input clutchAT-32312. Gear systemAT-278
13. High and low reverse clutchAT-335
14. Direct clutchAT-337
No. Item Symptom Condition Diagnostic ItemReference
page

AT-72
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
22
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 5th
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0

3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2
,
AT- 1 5 1
4. Line pressure testAT- 5 5
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Front brake (brake band)AT- 2 9 88. Input clutchAT- 3 2 3
9. Gear systemAT- 2 7 8
10. High and low reverse clutchAT- 3 3 5
23Vehicle cannot be
started from D
1 .
Refer to AT-199,
"Vehicle Cannot Be
Started from D1" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Accelerator pedal position sensorAT- 1 3 2
3. Line pressure testAT- 5 5
4. CAN communication lineAT- 1 0 5
5. Control valve with TCMAT- 2 3 6
OFF vehicle6. Torque converterAT- 2 9 8
7. Oil pump assemblyAT- 3 1 8
8. 3rd one-way clutchAT- 3 2 1
9. 1st one-way clutch AT- 3 2 9
10. Gear systemAT- 2 7 8
11. Reverse brakeAT- 2 9 8
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" o r
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 2 9 8
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
24Does not lock-up.
Refer to AT-209, "A/T
Does Not Lock-Up" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT- 1 2 4
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT- 1 2 6
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 89. Oil pump assemblyAT- 3 1 8
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-73
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M4525
Slips/Will
Not
EngageDoes not hold lock-up
condition.
Refer to AT-210, "A/T
Does Not Hold Lock-
Up Condition" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT-124
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT-126
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-2989. Oil pump assemblyAT-318
26Lock-up is not
released.
Refer to AT-212,
"Lock-Up Is Not
Released" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT-124
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT-126
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-2989. Oil pump assemblyAT-318
27No shock at all or the
clutch slips when
vehicle changes
speed D
1 D2 or
M
1 M2 . ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. CAN communication lineAT-105
5. Line pressure testAT- 5 5
6. Control valve with TCMAT-236
OFF vehicle7. Torque converterAT-298
8. Oil pump assemblyAT-318
9. 3rd one-way clutchAT-321
10. Gear systemAT-278
11. Direct clutchAT-337
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT- 1 8 ,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT- 1 9 ,
"Cross-Sectional View (AWD Models)" .)AT-298
No. Item Symptom Condition Diagnostic ItemReference
page

AT-74
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
28
Slips/Will
Not
EngageNo shock at all or the
clutch slips when
vehicle changes
speed D
2 D3 or
M
2 M3 .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 7 8,
AT- 1 5 9
4. CAN communication lineAT- 1 0 5
5. Line pressure testAT- 5 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Torque converterAT- 2 9 8
8. Oil pump assemblyAT- 3 1 8
9. 3rd one-way clutchAT- 3 2 1
10. Gear systemAT- 2 7 8
11. High and low reverse clutchAT- 3 3 5
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" o r
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 2 9 8
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
29No shock at all or the
clutch slips when
vehicle changes
speed D
3 D4 or
M
3 M4 .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. ATF pressure switch 3 and input clutch solenoid valveAT- 1 7 4,
AT- 1 4 7

4. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2
,
AT- 1 5 1
5. CAN communication lineAT- 1 0 5
6. Line pressure testAT- 5 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 8
9. Oil pump assemblyAT- 3 1 8
10. Input clutchAT- 3 2 3
11. Gear systemAT- 2 7 8
12. High and low reverse clutchAT- 3 3 5
13. Direct clutchAT- 3 3 7
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-75
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45
30
Slips/Will
Not
EngageNo shock at all or the
clutch slips when
vehicle changes
speed D
4 D5 or
M
4 M5 .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 1 and front brake solenoid valveAT-172,
AT-151
4. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
5. CAN communication lineAT-105
6. Line pressure testAT- 5 5
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-298
9. Oil pump assemblyAT-318
10. Front brake (brake band)AT-298
11. Input clutchAT-323
12. Gear systemAT-278
13. High and low reverse clutchAT-335
31When you press the
accelerator pedal and
shift speed D5 D4
or M
5 M4 the
engine idles or the A/
T slips.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 1 and front brake solenoid valveAT-172,
AT-151
4. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
5. CAN communication lineAT-105
6. Line pressure testAT- 5 5
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-298
9. Oil pump assemblyAT-318
10. Input clutchAT-323
11. Gear systemAT-278
12. High and low reverse clutchAT-335
13. Direct clutchAT-337
No. Item Symptom Condition Diagnostic ItemReference
page

AT-76
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
32
Slips/Will
Not
EngageWhen you press the
accelerator pedal and
shift speed D4 D3
or M
4 M3 the
engine idles or the A/
T slips.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. ATF pressure switch 3 and input clutch solenoid valveAT- 1 7 4,
AT- 1 4 7
4. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1
5. CAN communication lineAT- 1 0 5
6. Line pressure testAT- 5 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 8
9. Oil pump assemblyAT- 3 1 8
10. 3rd one-way clutchAT- 3 2 1
11. Gear systemAT- 2 7 8
12. High and low reverse clutchAT- 3 3 5
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" o r
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 2 9 8
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
33When you press the
accelerator pedal and
shift speed D3 D2
or M
3 M2 the
engine idles or the A/
T slips.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 7 8,
AT- 1 5 9
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 7 6,
AT- 1 5 5
5. CAN communication lineAT- 1 0 5
6. Line pressure testAT- 5 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 8
9. Oil pump assemblyAT- 3 1 8
10. 3rd one-way clutch AT- 3 2 1
11. Gear system
12. Direct clutchAT- 3 3 7
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 2 9 8
No. Item Symptom Condition Diagnostic ItemReference
page