Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Service Data
Identifying Automatic Transmission/Transaxle Service Data (1 Of 3)
| Fluid pressure (Fluid temperature) | 50 to 80°C (122 to 176°F) | |
| Engine idling | ||
| D position | 361 to 421 kPa (3.7 to 4.3 kgf.cm2 , 54 to 61 psi) | |
| R position | 482 to 562 kPa (4.9 to 5.7 kgf.cm2 , 70 to 82 psi) | |
| AT stall (Throttle valve fully opened) | ||
| D position | 1,245 to 1,345 kPa (13 to 14 kgf.cm2 , 181 to 195 psi) | |
| R position | 1,472 to 1,612 kPa (15 to 16 kgf.cm2 , 213 to 234 psi) | |
| Engine stall revolution | D and R positions | 2,400 ± 150 rpm |
| Time lag | N → D position | Less than 1.2 seconds |
| N → R position | Less than 1.5 seconds | |
| Engine idle speed | ||
| (A/C OFF) | N position | 750 ± 50 rpm |
| Drive plate runout | Max. | 0.20 mm (0.0079 in.) |
| Torque converter runout | Max. | 0.30 mm (0.0118 in.) |
| Extension housing oil drive in depth from flat end | 2.0 mm (0.0079 in.) | |
| Shift schedule | Differential gear ratio | 3.769 |
| D, 6 position (normal, power) | ||
| (Throttle valve fully opened) | 1 → 2 | 55 to 66 km/h (34 to 41 mph) |
| 2 → 3 | 93 to 104 km/h (58 to 65 mph) | |
| 3 → 4 | 140 to 156 km/h (87 to 97 mph) | |
| 4 → 5 | 186 to 203 km/h (116 to 126 mph) | |
| 5 → 6 | Gear position does not change because the limiter is activated when vehicle speed reaches 210 km/h (131 mph). | |
| 6 → 5 | Gear position does not change because the limiter is activated when vehicle speed reaches 210 km/h (131 mph). | |
| 5 → 4 | 180 to 193 km/h (112 to 120 mph) | |
| 4 → 3 | 132 to 144 km/h (82 to 89 mph) | |
| 3 → 2 | 83 to 91 km/h (52 to 57 mph) | |
| 2 → 1 | 38 to 45 km/h (24 to 28 mph) | |
| (Throttle valve fully closed) | 5 → 6 | 64 to 71 km/h (40 to 44 mph) |
| 6 → 5 | 51 to 57 km/h (32 to 35 mph) | |
| 5 position (normal, power) | ||
| (Throttle valve fully opened) | 1 → 2 | 55 to 66 km/h (34 to 41 mph) |
| 2 → 3 | 93 to 104 km/h (58 to 64 mph) | |
| 3 → 4 | 140 to 156 km/h (87 to 97 mph) | |
| 4 → 5 | 186 to 203 km/h (116 to 126 mph) | |
| 6 → 5 | Gear position does not change because the limiter is activated when vehicle speed reaches 210 km/h (131 mph). | |
| 5 → 4 | 180 to 193 km/h (112 to 120 mph) | |
| 4 → 3 | 132 to 144 km/h (82 to 89 mph) | |
| 3 → 2 | 83 to 91 km/h (52 to 57 mph) | |
| 2 → 1 | 38 to 45 km/h (24 to 28 mph) | |
| 4 position (normal, power) | ||
| (Throttle valve fully opened) | 1 → 2 | 55 to 66 km/h (34 to 41 mph) |
| 2 → 3 | 93 to 104 km/h (58 to 65 mph) | |
| 3 → 4 | 140 to 156 km/h (87 to 97 mph) | |
| 5 → 4 | 197 to 210 km/h (122 to 131 mph) | |
| 4 → 3 | 132 to 144 km/h (82 to 89 mph) | |
| 3 → 2 | 83 to 91 km/h (52 to 57 mph) | |
| 2 → 1 | 38 to 45 km/h (24 to 28 mph) | |
| 3 position (normal, power) | ||
Identifying Automatic Transmission/Transaxle Service Data (2 Of 3)
| (Throttle valve fully opened) | 1 → 2 | 55 to 66 km/h (34 to 41 mph) |
| 2 → 3 | 93 to 104 km/h (58 to 65 mph) | |
| 4 → 3 | 146 to 158 km/h (91 to 98 mph) | |
| 3 → 2 | 83 to 91 km/h (52 to 57 mph) | |
| 2 → 1 | 38 to 45 km/h (24 to 28 mph) | |
| 2 position (normal, power) | ||
| (Throttle valve fully opened) | 1 → 2 | 55 to 66 km/h (34 to 41 mph) |
| 3 → 2 | 98 to 109 km/h (61 to 68 mph) | |
| 2 → 1 | 38 to 45 km/h (24 to 28 mph) | |
| 1 position (normal, power) | ||
| (Throttle valve fully opened) | 2 → 1 | 35 to 41 km/h (22 to 25 mph) |
| Shift schedule | Differential gear ratio 3.769 | |
| D, 6 position (snow) | ||
| (Throttle valve fully opened) | 1 → 2 | 28 to 55 km/h (17 to 34 mph) |
| 2 → 3 | 59 to 94 km/h (37 to 58 mph) | |
| 3 → 4 | 90 to 144 km/h (56 to 89 mph) | |
| 4 → 5 | 131 to 194 km/h (81 to 121 mph) | |
| 5 → 6 | Gear position does not change because the limiter is activated when vehicle speed reaches 210 km/h (131 mph). | |
| 6 → 5 | 170 to 210 km/h (108 to 131 mph) | |
| 5 → 4 | 90 to 147 km/h (56 to 91 mph) | |
| 4 → 3 | 47 to 86 km/h (29 to 53 mph) | |
| 3 → 2 | 24 to 51 km/h (15 to 32 mph) | |
| 2 → 1 | 3 to 9 km/h (1.9 to 5.6 mph) | |
| (Throttle valve fully closed) | 5 → 6 | 64 to 71 km/h (40 to 44 mph) |
| 6 → 5 | 51 to 57 km/h (32 to 35 mph) | |
| 5 position (snow) | ||
| (Throttle valve fully opened) | 1 → 2 | 28 to 55 km/h (17 to 34 mph) |
| 2 → 3 | 59 to 94 km/h (37 to 58 mph) | |
| 3 → 4 | 90 to 144 km/h (56 to 89 mph) | |
| 4 → 5 | 131 to 194 km/h (81 to 121 mph) | |
| 6 → 5 | Gear position does not change because the limiter is activated when vehicle speed reaches 210 km/h (131 mph). | |
| 5 → 4 | 90 to 147 km/h (56 to 91 mph) | |
| 4 → 3 | 47 to 86 km/h (29 to 53 mph) | |
| 3 → 2 | 24 to 51 km/h (15 to 32 mph) | |
| 2 → 1 | 3 to 9 km/h (1.9 to 5.6 mph) | |
| 4 position (snow) | ||
| (Throttle valve fully opened) | 1 → 2 | 28 to 55 km/h (17 to 34 mph) |
| 2 → 3 | 59 to 94 km/h (37 to 58 mph) | |
| 3 → 4 | 90 to 144 km/h (56 to 89 mph) | |
| 5 → 4 | 197 to 211 km/h (122 to 131 mph) | |
| 4 → 3 | 47 to 86 km/h (29 to 53 mph) | |
| 3 → 2 | 24 to 51 km/h (15 to 32 mph) | |
| 2 → 1 | 3 to 9 km/h (1.9 to 5.6 mph) | |
| 3 position (snow) | ||
| (Throttle valve fully opened) | 1 → 2 | 28 to 55 km/h (17 to 34 mph) |
| 2 → 3 | 59 to 94 km/h (37 to 58 mph) | |
| 4 → 3 | 146 to 158 km/h (91 to 98 mph) | |
| 3 → 2 | 24 to 51 km/h (15 to 32 mph) | |
| 2 → 1 | 3 to 9 km/h (1.9 to 5.6 mph) | |
| 2 position (snow) | ||
| (Throttle valve fully opened) | 1 → 2 | 28 to 55 km/h (17 to 34 mph) |
Identifying Automatic Transmission/Transaxle Service Data (3 Of 3)
| 3 → 2 | 98 to 109 km/h (61 to 68 mph) | |
| 2 → 1 | 3 to 9 km/h (1.9 to 5.6 mph) | |
| Position | ||
| Throttle valve fully opened) | 2 → 1 | 35 to 41 km/h (22 to 25 mph) |
| Lock-up point | Throttle valve opening 5% | |
| D, 6, 5 position (normal, power) | ||
| 6th gear | Lock-up ON | 68 to 75 km/h (42 to 47 mph) |
| Lock-up OFF | 64 to 71 km/h (40 to 44 mph) | |
| 5th gear | Lock-up ON | 55 to 61 km/h (34 to 38 mph) |
| Lock-up OFF | 51 to 57 km/h (32 to 35 mph) | |
| 4 position (normal, power) | ||
| 4th gear | Lock-up ON | 55 to 61 km/h (34 to 38 mph) |
| Lock-up OFF | 51 to 57 km/h (32 to 35 mph) | |
| Flex lock-up point | Throttle valve opening 3% | |
| D, 6, 5, 4 (Acceleration) | ||
| 6th gear | Flex lock-up ON | 55 to 61 km/h (34 to 38 mph) |
| Flex lock-up OFF | 53 to 60 km/h (33 to 37 mph) | |
| 5th gear | Flex lock-up ON | 43 to 50 km/h (27 to 31 mph) |
| Flex lock-up OFF | 42 to 48 km/h (26 to 30 mph) | |
| 4th gear | Flex lock-up ON | 31 to 37 km/h (19 to 23 mph) |
| Flex lock-up OFF | 29 to 36 km/h (18 to 22 mph) | |
NOTE:
- All shift point values indicated in the above tables are actual values. Therefore, if checking a shift point with a drum tester, keep in mind that there is a range of error in the tester indication.
- If checking a shift point against the speed indicated on the speedometer, remember to consider the speedometer correction rate and range of error in the tester indication.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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