Lexus SC300 / Lexus SC400. Manual - part 72

5. P

POSITION

TEST

Stop the vehicle on a gradient (more than 5

) and after shift-

ing into the P position, release the parking brake. Then check
to see that the parking lock pawl holds the vehicle in place.

AT–44

–

A304E (1UZ–FE) AUTOMATIC TRANSMISSION

TROUBLESHOOTING

AT09W–09

AUTOMATIC SHIFT SCHEDULE

SHIFT POINT
NORM Mode (Kick–down foot switch activated)

ÑÑÑÑÑÑÑÑÑÑÑ

Shift position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Shifting point

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Vehicle speed km/h (mph)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

118–124 (73–77)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

170–177 (106–110)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

164–170 (102–106)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

105–111 (65–69)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

2 position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

106–112 (66–70)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

104–109 (65–68)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

57–63 (35–39)

NORM Mode (Kick–down foot switch deactivated)

ÑÑÑÑÑÑÑÑÑÑÑ

Shift position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Shifting point

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Vehicle speed km/h (mph)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

118–124 (73–77)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

O/D

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

155–161 (96–100)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

128–134 (79–83)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

71–75 (44–47)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

10–13 (6–8)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully closed

→

O/D

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

32–35 (20–22)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

23–26 (14–16)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

2 position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

106–112 (66–70)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

10–13 (6–8)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

104–109 (65–68)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

57–63 (35–39)

PWR Mode (Kick–down foot switch activated)

ÑÑÑÑÑÑÑÑÑÑÑ

Shift position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Shifting point

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Vehicle speed km/h (mph)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

116–124 (73–77)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

O/D

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

179–186 (111–116)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

164–170 (102–106)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

105–111 (65–69)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

2 position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

106–112 (66–70)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

104–109 (65–68)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

57–63 (35–39)

–

A304E (1UZ–FE) AUTOMATIC TRANSMISSION

TROUBLESHOOTING

AT–45

PWR Mode (Kick–down foot switch deactivated)

ÑÑÑÑÑÑÑÑÑÑÑ

Shift position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Shifting point

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Vehicle speed km/h (mph)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

118–124 (73–77)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

O/D

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

179–186 (111–116)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

149–155 (93–96)

ÑÑÑÑÑÑÑÑÑÑÑ

D position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

95–100 (59–62)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

22–26 (14–16)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully closed

→

O/D

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

32–35 (20–22)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

O/D

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

23–26 (14–16)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

67–71 (42–44)

ÑÑÑÑÑÑÑÑÑÑÑ

2 position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

106–112 (66–70)

ÑÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

10–13 (6–8)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve fully opened

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

104–109 (65–68)

ÑÑÑÑÑÑÑÑÑÑÑ

L position

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

→

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

57–63 (35–39)

LOCK–UP POINT

NORM Mode

ÑÑÑÑÑÑÑÑÑÑÑÑ

D position

km/h (mph)

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Lock–up ON

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Lock–up OFF

ÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve opening 5%

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Lock–up ON

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

Lock–up OFF

ÑÑÑÑÑÑÑÑÑÑÑÑ

*3rd Gear

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

83–88 (52–55)

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

77–82 (48–51)

ÑÑÑÑÑÑÑÑÑÑÑÑ

O/D Gear

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

56–60 (35–37)

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

*: O/D Switch OFF

PWR Mode

D position

km/h (mph)

Lock–up ON

Lock–up OFF

ÑÑÑÑÑÑÑÑÑÑÑÑ

Throttle valve opening 5%

Lock–up ON

Lock–up OFF

ÑÑÑÑÑÑÑÑÑÑÑÑ

*3rd Gear

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

83–88 (52–55)

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

77–82 (48–51)

ÑÑÑÑÑÑÑÑÑÑÑÑ

O/D Gear

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

56–60 (35–37)

ÑÑÑÑÑÑÑÑÑÑÑÑÑ

53–57 (33–35)

*: O/D Switch OFF
HINT:
(1) There is no lock–up in the 2 and L positions.
(2) In the following cases, the lock–up will be released regardless of the lock–up pattern.

When the throttle valve is completely closed.

When the brake light switch is ON.

(3) Shift up to 3rd will not occur when the engine coolant temp. is below 35

C (95

F) and the vehicle speed

is below 40 km/h (25 mph).

(4) Shift–up to O/D will not occur when the engine coolant temp. is below 60

C (140

F) and the vehicle

speed is below 63 km/h (39 mph).

(5) During cruise control operation, the shift pattern is fixed in NORM. And when the vehicle speed drops

to 10 km/h (6 mph) or more below the cruise control set vehicle speed, shift down from O/D to 3rd
occurs.

(6) The kick–down foot switch turns ON when the accelerator pedal is depressed further with the throttle

valve already fully open.

AT–46

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A304E (1UZ–FE) AUTOMATIC TRANSMISSION

TROUBLESHOOTING

AT00S–01

PRELIMINARY CHECK

CHECK FLUID LEVEL
HINT:

•

Drive the vehicle so that the engine and transmission
are at normal operating temperature.

Fluid temp.: 70–80

C (158–176

•

Only use the COOL range on the dipstick as a rough
reference when the fluid is replaced or the engine does
not run.

(a) Park

the vehicle on a level surface and set the parking brake.

(b) With the engine idling and the brake pedal depressed, shift

the shift lever into all positions from P to L position and return
to P position.

(c)  Pull out the transmission dipstick and wipe it clean.
(d)  Push it back fully into the tube.
(e)  Pull it out and check that the fluid level is in the HOT range.

If the level is at the low side, add fluid.

Fluid type:

ATF TYPE T–II or Equivalent

NOTICE: Do not overfill.

CHECK FLUID CONDITION
If the fluid smells burnt or is black, replace it.

REPLACE TRANSMISSION FLUID

(a)  Remove the drain plug and drain the fluid.
(b)  Reinstall the drain plug securely.
(c)  With the engine OFF, add new fluid through the oil filler tube.

Fluid type:

ATF TYPE T–II or Equivalent

Capacity:

Total:

8.2 liters (8.7 US qts, 7.2 lmp. qts)

Drain and refill:

1.9 liters (2.0 US qts, 1.7 lmp. qts)

(d) Start the engine and shift the shift lever into all positions from

P to L position and then shift into P position.

(e) With

the

engine idling, check the fluid level. Add fluid up to the

COOL level on the dipstick.

–

A304E (1UZ–FE) AUTOMATIC TRANSMISSION

TROUBLESHOOTING

AT–47

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