2006 INFINITI M35 brake

AT-58
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
3. CHECK “P” POSITION FUNCTIONS
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES >> Enter a check mark at “In “P” Position, Vehicle Moves When Pushed” on the AT- 4 8 , "DIAGNOS-
TIC WORKSHEET" , then continue the road test.
NO >> GO TO 4.
4. CHECK “N” POSITION FUNCTIONS
1. Start engine.
2. Move selector lever to “N” position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Enter a check mark at “In “N” Position, Vehicle Moves” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to “D” position.
When the A/T is shifted from
“N” to “D”, is there an excessive shock?
YES >> Enter a check mark at “Large Shock (“N” to “D” Position)” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
NO >> GO TO 6.
6. CHECK “R” POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to “R” position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Enter a check mark at “Vehicle Does Not Creep Backward in “R” Position” on the AT- 4 8 , "
DIAG-
NOSTIC WORKSHEET" , then continue the road test.
7. CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the “D” position.
Does the vehicle creep forward in the
“D” position?
YES >> Go to AT- 5 9 , "Cruise Test - Part 1" , AT- 6 1 , "Cruise Test - Part 2" and AT- 6 2 , "Cruise Test - Part 3"
.
NO >> Enter a check mark at “Vehicle Does Not Creep Forward in “D” Position” on the AT- 4 8 , "
DIAG-
NOSTIC WORKSHEET" , then continue the road test.

AT-60
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
5. CHECK SHIFT-UP D4 D5
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D4
D5) at the appro-
priate speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle degree of opening and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR
MODE" .
Does the A/T shift-up D4
D5 at the correct speed?
YES >> GO TO 6.
NO >> Enter a check mark at “A/T Does Not Shift: D4
D5” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
6. CHECK LOCK-UP
When releasing accelerator pedal (closed throttle position signal: OFF) from D5, check lock-up from D5 to L/U.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 9 0 , "
CONSULT-II REFER-
ENCE VALUE" .
Does it lock-up?
YES >> GO TO 7.
NO >> Enter a check mark at “A/T Does Not Lock-up” on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET" ,
then continue the road test.
7. CHECK LOCK-UP HOLD
Check hold lock-up.
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 9 0 , "
CONSULT-II REFER-
ENCE VALUE" .
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at “A/T Does Not Hold Lock-up Condition” on the AT- 4 8 , "
DIAGNOSTIC
WORKSHEET" , then continue the road test.
8. CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for A/T. Refer to AT- 9 0 , "
CONSULT-II REFERENCE
VA L U E" .
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at “Lock-up Is Not Released” on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET" ,
then continue the road test.

TROUBLE DIAGNOSIS
AT-61
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45
9. CHECK SHIFT-DOWN D5 D4
Decelerate by pressing lightly on the brake pedal.
With CONSULT-II
Read the gear position and engine speed. Refer to AT-96, "
DATA MONITOR MODE" .
When the A/T shift-down D5
D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle.
2. Go to AT- 6 1 , "
Cruise Test - Part 2" .
NO >> Enter a check mark at “Engine Speed Does Not Return to Idle” on the AT- 4 8 , "
DIAGNOSTIC
WORKSHEET" , then continue the road test. Go to AT-61, "Cruise Test - Part 2" .
Cruise Test - Part 2NCS001KB
1. CHECK STARTING FROM D1
1. Move selector lever to “D” position.
2. Accelerate at half throttle.
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does it start from D1?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Cannot Be Started from D1” on the AT- 4 8 , "
DIAGNOSTIC WORK-
SHEET" , then continue the road test.
2. CHECK SHIFT-UP D1 D2
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D1
D2) at the
correct speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle position and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D1
D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at “A/T Does Not Shift: D1
D2” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
3. CHECK SHIFT-UP D2 D3
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D2
D3) at the
correct speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle position and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D2
D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at “A/T Does Not Shift: D2
D3” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.

AT-62
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
4. CHECK SHIFT-UP D3 D4 AND ENGINE BRAKE
When the A/T changes speed D3
D4, return the accelerator pedal.
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D3
D4 and apply the engine brake?
YES >> 1. Stop the vehicle.
2. Go to AT- 6 2 , "
Cruise Test - Part 3" .
NO >> Enter a check mark at “A/T Does Not Shift: D3
D4” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test. Go to AT-62, "Cruise Test - Part 3" .
Cruise Test - Part 3NCS001KC
1. MANUAL MODE FUNCTION
Move to manual mode from “D” position.
Does it switch to manual mode?
YES >> GO TO 2.
NO >> Continue road test and add check mark to “Cannot Be Changed to Manual Mode” on AT- 4 8 ,
"DIAGNOSTIC WORKSHEET" .
2. CHECK SHIFT-DOWN
During manual mode driving, is downshift from M5
M4 M3 M2 M1 performed?
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Is downshifting correctly performed?
YES >> GO TO 2.
NO >> Enter a check mark at “A/T Does Not Shift” at the corresponding position (5th
4th, 4th 3rd,
3rd
2nd, 2nd 1st) on the AT- 4 8 , "DIAGNOSTIC WORKSHEET" , then continue the road test.
3. CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in M1 position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnostics. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 ,
"Diagnostic Procedure without CONSULT-II" .
NO >> Enter a check mark at “Vehicle Does Not Decelerate by Engine Brake” on the AT- 4 8 , "
DIAGNOS-
TIC WORKSHEET" , then continue trouble diagnosis.

AT-64
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
AW D M OD E LS
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
At half throttle, the accelerator opening is 4/8 of the full opening.
Symptom ChartNCS001KF
The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.
Overhaul and inspection inside the A/T only if A/T fluid condition is NG. Refer to AT- 5 3 , "A/T Fluid Condi-
tion Check" .
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 51 - 59 (32 - 37) 48 - 56 (30 - 35)
Half throttle 188 - 196 (117 - 122) 132 - 140 (82 - 87)
No. Item Symptom Condition Diagnostic ItemReference
page
1Shift
ShockLarge shock. (“N”

“D” position)
Refer to AT-193,
"Large Shock (“N” to
“D” Position)" .ON vehicle1. Engine idle speedEC-82
( fo r
VQ35DE
engine),
EC-793

(for
VK45DE
engine)
2. Engine speed signalAT- 1 2 4
3. Accelerator pedal position sensorAT- 1 3 2
4. Control linkage adjustmentAT- 2 2 7
5. A/T fluid temperature sensorAT- 1 3 5
6. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1
7. CAN communication lineAT- 1 0 5
8. A/T fluid level and stateAT- 5 3
9. Line pressure testAT- 5 5
10. Control valve with TCMAT- 2 3 6
OFF vehicle11. 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

AT-66
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
5
Shift
ShockShock is too large
when changing D4
D
5 or M4 M5 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. Control linkage adjustmentAT- 2 2 7
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1

4. CAN communication lineAT- 1 0 5
5. Engine speed signalAT- 1 2 4
6. Turbine revolution sensorAT- 11 7
7. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT- 2 3 6
OFF vehicle10. Front brake (brake band)AT- 2 9 811. Input clutchAT- 3 2 3
6Shock is too large for
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. Control linkage adjustmentAT- 2 2 7
3. CAN communication lineAT- 1 0 5
4. Engine speed signalAT- 1 2 4
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
7. A/T fluid level and stateAT- 5 3
8. Control valve with TCMAT- 2 3 6
OFF vehicle9. Front brake (brake band)AT- 2 9 810. Input clutch AT- 3 2 3
11. High and low reverse clutchAT- 3 3 5
12. Direct clutchAT- 3 3 7
7Shock is too large for
upshift when acceler-
ator pedal is released.ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. Control linkage adjustmentAT- 2 2 7
3. Engine speed signalAT- 1 2 4
4. CAN communication lineAT- 1 0 5
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
7. A/T fluid level and stateAT- 5 3
8. Control valve with TCMAT- 2 3 6
OFF vehicle9. Front brake (brake band)AT- 2 9 810. Input clutch AT- 3 2 3
11. High and low reverse clutch AT- 3 3 5
12. Direct clutch AT- 3 3 7
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-67
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45
8
Shift
ShockShock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-132
2. Control linkage adjustmentAT-227
3. Engine speed signalAT-124
4. CAN communication lineAT-105
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
7. Torque converter clutch solenoid valveAT-126
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. Torque converterAT-298
9Shock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT-132
2. Control linkage adjustmentAT-227
3. CAN communication lineAT-105
4. A/T fluid level and stateAT- 5 3
5. Control valve with TCMAT-236
OFF vehicle6. Front brake (brake band)AT-2987. Input clutch AT-323
8. High and low reverse clutchAT-335
9. Direct clutch AT-337
10
No Up
ShiftGear does not change
from D
1 D2 o r f ro m
M
1 M2 .
Refer to AT-201, "
A/T
Does Not Shift: D1
D2" .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. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. Direct clutchAT-337
11Gear does not change
from D
2 D3 o r f ro m
M
2 M3 .
Refer to AT-203, "
A/T
Does Not Shift: D2
D3" .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. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. High and low reverse clutchAT-335
No. Item Symptom Condition Diagnostic ItemReference
page

AT-68
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
12
No Up
ShiftGear does not change
from D
3 D4 o r f r o m
M
3 M4 .
Refer to AT-205, "
A/T
Does Not Shift: D3
D4" .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. Line pressure testAT- 5 5
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle 8. Input clutchAT- 3 2 3
13Gear does not change
from D
4 D5 o r f r o m
M
4 M5 .
Refer to AT-207, "
A/T
Does Not Shift: D4
D5" .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. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 7 6,
AT- 1 5 5
5. Turbine revolution sensorAT- 11 7
6. Line pressure testAT- 5 5
7. CAN communication lineAT- 1 0 5
8. Control valve with TCMAT- 2 3 6
OFF vehicle9. Front brake (brake band)AT- 2 9 810. Input clutchAT- 3 2 3
14No Down
ShiftIn “D” or “M” position,
does not downshift to
4th 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. 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. Front brake (brake band)AT- 2 9 89. Input clutchAT- 3 2 3
No. Item Symptom Condition Diagnostic ItemReference
page