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.
2008 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE
Service Data
Brake Actuator
BRAKE ACTUATOR - SERVICE DATA
| Item | Tester Connection | Specified Condition |
|---|---|---|
| Brake actuator assembly | 20 (SMC1)-19 (BS1) | 15 3 to 25.0 Ω |
| 6 (SMC2) - 7 (BS2) | ||
| 8 (FRA+) - 5 (FRA-) | 3.6 to 6.0 Ω | |
| 22 (FRR+) - 21 (FRR-) | ||
| 13 (FLA+)-14 (FLA-) | ||
| 27 (FLR+) - 28 (FLR-) | ||
| 12 (RRA+)-11 (RRA-) | ||
| 10 (RLA+)-9 (RLA-) | ||
| 26 (RRR+) - 25 (RRR-) | 4.4 to 7.0 Ω | |
| 24 (RLR+) - 23 (RLR-) | ||
| Brake accumulator pump | A2 (BM1)-A4 (GND1) | 10 Ω or less |
| B2 (BM2)-A4 (GND1) | ||
| A2 (BM1)-B2 (BM2) | Below 1 Ω | |
| A4 (GND1)-B1 (GND2) | ||
| A2 (BM1)-A1 (MTT) | 950 to 1050 Ω | |
| B2 (BM2) - A1 (MTT) |
Skid Control Buzzer
SKID CONTROL BUZZER - SERVICE DATA
| Item | Measurement Condition | Specified Condition |
|---|---|---|
| Skid control buzzer assembly | Battery positive (+) → Terminal 2 | Skid control buzzer sounds |
| Battery negative (-) → Terminal 1 |
ABS Motor Relay (ABS MTR1)
ABS MOTOR RELAY - SERVICE DATA
| Item | Tester Connection | Switch Condition | Specified Condition |
|---|---|---|---|
| ABS motor relay (ABS MTR1) | Terminal 23 or 24 - Body ground | Motor relay ON | 11 to 14 V |
| Motor relay OFF | 0 V | ||
| Terminal 25 or 26 - Body ground | - | 11 to 14 V |
ABS Motor Relay (ABS MTR2)
ABS MOTOR RELAY (ABS MTR2) - SERVICE DATA
| Item | Tester Connection | Specified Condition |
|---|---|---|
| ABS motor relay (ABS MTR2) | 3-5 | 10 kΩ or higher |
| Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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.