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.
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HOMESERVICE MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESELECTRONICALLY CONTROLLED BRAKE SYSTEM
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Electronically Controlled Brake System
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Electronically Controlled Brake System
PROBLEM SYMPTOMS TABLE
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table and proceed to the relevant troubleshooting.
NOTICE: When replacing the skid control ECU, sensor, etc., turn the ignition switch Off.
HINT:
Inspect the fuse and relay before investigating the suspected areas as shown in the table.
Inspect each malfunctioning circuit in numerical order for the corresponding symptom.
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table and proceed to the relevant troubleshooting.
NOTICE: When replacing the skid control ECU, sensor, etc., turn the ignition switch Off.
HINT:
Inspect the fuse and relay before investigating the suspected areas as shown in the table.
Inspect each malfunctioning circuit in numerical order for the corresponding symptom.
Problem Symptoms Table-Electronically Controlled Brake System:
Problem Symptoms Table-Electronically Controlled Brake System:
RENDER: 1.0x
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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.