Problem Symptoms Table
WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Check the circuits for each problem symptom in the order given in the figure Fig 1 below, and proceed to the rely*** troubleshooting page.
HINT:
- Inspect each circuit in numerical order for the corresponding symptom.
If the malfunction still exists even after checking and confirming that all the circuits are normal, replace the brake actuator assy (skid control ECU).
- When a malfunction is found in the skid control ECU, replace the brake actuator assy. (The skid control ECU and brake actuator assy are combined as a unit.)
- When the tire pressure warning indicator comes on and the ABS warning lamp comes on, check the ABS system first.