Infiniti Q45. Manual — part 36

Starts from D1?

YES

>> GO TO 2.

>> Enter a check mark at “Vehicle Cannot Be Started from D1” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

CHECK SHIFT-UP D1

→

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

→

D2) at the appro-

priate speed. Refer to

With CONSULT-II

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

Does the A/T shift-up D1

→

D2 at the correct speed?

YES

>> GO TO 3.

>> Enter a check mark at “A/T Does Not Shift: D1

→

D2” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

CHECK SHIFT-UP D2

→

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

→

D3) at the appro-

priate speed. Refer to

With CONSULT-II

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

Does the A/T shift-up D2

→

D3 at the correct speed?

YES

>> GO TO 4.

>> Enter a check mark at “A/T Does Not Shift: D2

→

D3” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

CHECK SHIFT-UP D3

→

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

→

D4) at the appro-

priate speed. Refer to

With CONSULT-II

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

Does the A/T shift-up D3

→

D4 at the correct speed?

YES

>> GO TO 5.

>> Enter a check mark at “A/T Does Not Shift: D3

→

D4” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

AT-58

TROUBLE DIAGNOSIS

CHECK SHIFT-UP D4

→

Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D4

→

D5) at the appro-

priate speed. Refer to

With CONSULT-II

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

Does the A/T shift-up D4

→

D5 at the correct speed?

YES

>> GO TO 6.

>> Enter a check mark at “A/T Does Not Shift: D4

→

D5” on the

AT-60, "Vehicle Speed at Which Lock-up Occurs/Releases"

, then continue the road test.

CHECK LOCK-UP

When releasing accelerator pedal (closed throttle position signal: OFF) from D5, check lock-up from D5 to L/U.
Refer to

With CONSULT-II

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

AT-85, "CONSULT-II REFER-

ENCE VALUE"

Does it lock-up?

YES

>> GO TO 7.

>> Enter a check mark at “A/T Does Not Lock-up” on the

AT-46, "DIAGNOSTIC WORKSHEET"

then continue the road test.

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-85, "CONSULT-II REFER-

ENCE VALUE"

Does it maintain lock-up status?

YES

>> GO TO 8.

>> Enter a check mark at “A/T Does Not Hold Lock-up Condition” on the

AT-46, "DIAGNOSTIC

WORKSHEET"

, then continue the road test.

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-85, "CONSULT-II REFERENCE

VALUE"

Does lock-up cancel?

YES

>> GO TO 9.

>> Enter a check mark at “Lock-up Is Not Released” on the

AT-46, "DIAGNOSTIC WORKSHEET"

then continue the road test.

CHECK SHIFT-DOWN D5

→

Decelerate by pressing lightly on the brake pedal.

With CONSULT-II

Read the gear position and engine speed. Refer to

AT-59, "Cruise Test - Part 2"

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

>> Enter a check mark at “Engine Speed Does Not Return to Idle” on the

AT-46, "DIAGNOSTIC

WORKSHEET"

, then continue the road test. Go to

AT-59, "Cruise Test - Part 2"

TROUBLE DIAGNOSIS

AT-59

Cruise Test - Part 2

NCS000UF

CHECK STARTING FROM D1

Move selector lever to “D” position.

Accelerate at half throttle.

With CONSULT-II

Read the gear position. Refer to

Does it start from D1?

YES

>> GO TO 2.

>> Enter a check mark at “Vehicle Cannot Be Started from D1” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

CHECK SHIFT-UP D1

→

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

With CONSULT-II

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

Does the A/T shift-up D1

→

D2 at the correct speed?

YES

>> GO TO 3.

>> Enter a check mark at “A/T Does Not Shift: D1

→

D2” on the

AT-60, "Vehicle Speed at Which Gear Shifting Occurs"

, then continue the road test.

CHECK SHIFT-UP D2

→

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

With CONSULT-II

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

Does the A/T shift-up D2

→

D3 at the correct speed?

YES

>> GO TO 4.

>> Enter a check mark at “A/T Does Not Shift: D2

→

D3” on the

, then continue the road test.

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-59, "Cruise Test - Part 3"

Does the A/T shift-up D3

→

D4 and apply the engine brake?

YES

>> 1. Stop the vehicle.

2. Go to

>> Enter a check mark at “A/T Does Not Shift: D3

→

D4” on the

AT-59, "Cruise Test - Part 3"

, then continue the road test. Go to

Cruise Test - Part 3

NCS000UG

MANUAL MODE FUNCTION

Move to manual mode from “D” position.

Does it switch to manual mode?

YES

>> GO TO 2.

>> Continue road test and add check mark to “Cannot Be Changed to Manual Mode” on

AT-46,

"DIAGNOSTIC WORKSHEET"

AT-60

TROUBLE DIAGNOSIS

CHECK SHIFT-DOWN

During manual mode driving, is downshift from M5

→

M1 performed?

With CONSULT-II

Read the gear position. Refer to