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.
1998 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
Automatic Transmission DTCS
AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| P0500 | Vehicle Speed Sensor |
| P0710 | ATF Temperature Sensor |
| P0715 | OD Direct Clutch Speed Sensor |
| P0750 | No. 1 Solenoid |
| P0753 | No. 1 Solenoid Circuit |
| P0755 | No. 2 Solenoid |
| P0758 | No. 2 Solenoid Circuit |
| P0760 | No. 3 Solenoid |
| P0763 | No. 3 Solenoid Circuit |
| P0768 | No. 4 Solenoid Circuit |
| P0770 | Lock-Up Solenoid |
| P1520 | Brakelight Switch Circuit |
| P1755 | Lock-Up Solenoid Circuit |
| P1760 | SLT Solenoid Circuit |
| P1765 | SLN Solenoid Circuit |
| P1780 | Park/Neutral Position Switch |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.