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.
1994 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake System
- Description
- Operation
- Bleeding Brake System
- Trouble Shooting
- Diagnosis & Testing
- Notes
- Accessing Diagnostic Codes
- Diagnostic Codes
- Notes
- Code 11
- Code 12
- Code 13
- Code 14
- Code 15 (With TRAC)
- Code 16 (With TRAC)
- Code 17 (With TRAC)
- Code 18 (With TRAC)
- Code 21
- Code 22
- Code 23
- Code 24 (With TRAC)
- Code 25 (With TRAC)
- Code 26 (With TRAC)
- Code 27 (With TRAC)
- Code 31
- Code 32
- Code 33
- Code 34
- Code 35
- Code 36
- Code 41
- Code 51
- Code 53 (With TRAC)
- Code 54 (With TRAC)
- Code 55 (With TRAC)
- Code 56 (With TRAC)
- Code 57 (With TRAC)
- Code 61 (With TRAC)
- Code 62 (With TRAC)
- ABS Warning Light Always On (Not Blinking)
- Clearing Codes
- Actuator Check
- Speed Sensor Diagnostics
- Speed Sensor Diagnostic Codes
- Component Testing
- Diagnostic Code Charts
- Codes 11 & 12 - Abs Solenoid Relay Circuit
- Codes 13 & 14 - Abs Pump Motor Relay Circuit
- Codes 15 & 16 - TRAC Solenoid Relay Circuit
- Codes 17 & 18 - TRAC Motor Relay Circuit
- Codes 21-24 - Abs Actuator Solenoid Circuit
- Codes 25-27 - TRAC Actuator Solenoid Circuit
- Codes 31-36 - Speed Sensor Circuit
- Code 41 - IG Power Source Circuit
- Code 51 - Abs Pump Motor Lock
- Codes 53, 56 & 57 - Pressure Sensor Circuit
- Code 54 - Excessive Operation Of TRAC Pump Motor
- Code 55 - Brake Fluid Level Warn Switch Circuit
- Code 61 - TRAC Ecu Communication Circuit Malfunction
- Code 62 - TRAC Vehicle Speed Malfunction
- Stoplight Diagnostic Chart
- Removal & Installation
- Overhaul
- Adjustments
- Torque Specifications
- Wiring Diagram
Factory Service Tools
Use the Manual With the Right Hardware
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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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