Infiniti G35 (V35). Manual - part 16

TROUBLE DIAGNOSIS

AT-55

D

E

F

G

H

I

J

K

L

M

A

B

AT

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 releasing the parking brake, does it move?

YES

>> Enter a check mark at 

AT-182, "In  “P” Position, Vehicle Moves When Pushed"

  on the 

AT-45,

"DIAGNOSTIC WORKSHEET"

 , then continue the road test.

NO

>> GO TO 4. 

4. 

CHECK “N” POSITION FUNCTIONS

1.

Start the 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 

AT-183, "In  “N” Position, Vehicle Moves"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , 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 

AT-184, "Large Shock (“N” to “D” Position)"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , 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 

AT-186, "Vehicle Does Not Creep Backward in “R” Position"

  on the 

AT-45,

"DIAGNOSTIC 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” positions?

YES

>> Go to 

AT-56, "Cruise Test - Part 1"

 , 

AT-58, "Cruise Test - Part 2"

 and 

AT-59, "Cruise Test - Part 3"

.

NO

>> Enter a check mark at 

AT-188, "Vehicle Does Not Creep Forward in “D” Position"

  on the 

AT-45,

"DIAGNOSTIC WORKSHEET"

 , then continue the road test. Go to 

AT-56, "Cruise Test - Part 1"

 ,

AT-58, "Cruise Test - Part 2"

  and 

AT-59, "Cruise Test - Part 3"

 .

AT-56

TROUBLE DIAGNOSIS

Cruise Test - Part 1

NCS000BZ

1. 

CHECK STARTING OUT FROM D1

1.

Drive the vehicle for about 10 minutes to warm up the engine oil and ATF.
Appropriate temperature for the ATF: 50 to 80

°

C (122 to 176

°

F)

2.

Park the vehicle on a level surface.

3.

Move selector lever to “P” position.

4.

Start the engine.

5.

Move selector lever to “D” position.

6.

Press the accelerator pedal about half-way down to accelerate the vehicle.

 With CONSULT-II

Read the gear positions. Refer to 

AT-89, "DATA MONITOR MODE"

 .

Starts from D1?

YES

>> GO TO 2.

NO

>> Enter a check mark at 

AT-190, "Vehicle Cannot Be Started From D

1

"

  on the 

AT-45, "DIAGNOS-

TIC WORKSHEET"

 , then continue the road test.

2. 

CHECK SHIFT UP D1 

→

 D2

Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D1 

→

 D2) at the appro-

priate speed. Refer to 

AT-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Refer to 

AT-89, "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 

AT-192, "A/T Does Not Shift: D

1

 

→

  D

2

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , then continue the road test.

3. 

CHECK SHIFT UP D2 

→

 D3

Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D2 

→

 D3) at the appro-

priate speed. Refer to 

AT-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Refer to 

AT-89, "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 

AT-194, "A/T Does Not Shift: D

2

 

→

  D

3

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , then continue the road test.

4. 

CHECK SHIFT UP D3 

→

 D4

Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D3 

→

 D4) at the appro-

priate speed. Refer to 

AT-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Refer to 

AT-89, "DATA MONITOR

MODE"

 .

Does the A/T shift up D3 

→

 D4 at the correct speed?

YES

>> GO TO 5.

NO

>> Enter a check mark at 

AT-196, "A/T Does Not Shift: D

3

 

→

  D

4

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , then continue the road test.

TROUBLE DIAGNOSIS

AT-57

D

E

F

G

H

I

J

K

L

M

A

B

AT

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-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Refer to 

AT-89, "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 

AT-198, "A/T Does Not Shift: D

4

 

→

  D

5

"

    on  the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , 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-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Select “TCC SOLENOID” with the “MAIN SIGNALS” mode for “A/T”. Refer to 

AT-84, "CONSULT-II REFER-

ENCE VALUE"

 .

Does it lock-up?

YES

>> GO TO 7.

NO

>> Enter a check mark at 

AT-200, "A/T Does Not Perform Lock-up"

  on the 

AT-45, "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 SIGNALS” mode for “A/T”. Refer to 

AT-84, "CONSULT-II REFER-

ENCE VALUE"

Does it maintain lock-up status?

YES

>> GO TO 8.

NO

>> Enter a check mark at 

AT-201, "A/T Does Not Hold Lock-up Condition"

  on the 

AT-45, "DIAGNOS-

TIC 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 SIGNALS” mode for “A/T”. Refer to 

AT-84, "CONSULT-II REFER-

ENCE VALUE"

Does lock-up cancel?

YES

>> GO TO 9.

NO

>> Enter a check mark at 

AT-203, "Lock-up Is Not Released"

  on the 

AT-45, "DIAGNOSTIC WORK-

SHEET"

 , then continue the road test.

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-89, "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-58, "Cruise Test - Part 2"

 .

NO

>> Enter a check mark at 

AT-203, "Engine Speed Does Not Return to Idle"

  on the 

AT-45, "DIAG-

NOSTIC WORKSHEET"

 , then continue the road test. Go to 

AT-58, "Cruise Test - Part 2"

 .

AT-58

TROUBLE DIAGNOSIS

Cruise Test - Part 2

NCS000C0

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-89, "DATA MONITOR MODE"

 .

Does it start from D1?

YES

>> GO TO 2.

NO

>> Enter a check mark at 

AT-190, "Vehicle Cannot Be Started From D

1

"

  on the 

AT-45, "DIAGNOS-

TIC WORKSHEET"

 , 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-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle position and vehicle speed. Refer to 

AT-89, "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 

AT-192, "A/T Does Not Shift: D

1

 

→

  D

2

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , 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-59, "Vehicle Speed at Which Gear Shifting Occurs"

 .

 With CONSULT-II

Read the gear position, throttle position and vehicle speed. Refer to 

AT-89, "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 

AT-194, "A/T Does Not Shift: D

2

 

→

  D

3

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , then continue the road test.

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-89, "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-59, "Cruise Test - Part 3"

 .

NO

>> Enter a check mark at 

AT-196, "A/T Does Not Shift: D

3

 

→

  D

4

"

  on the 

AT-45, "DIAGNOSTIC

WORKSHEET"

 , then continue the road test. Go to 

AT-59, "Cruise Test - Part 3"

 .