Toyota Lexus Gs430, Gs300. Uzs190 Grs190POWER STEERING POWER STEERING SYSTEM PRECAUTION PROBLEM SYMPTOMS TABLE ON-VEHICLE INSPECTION ELECTRONIC POWER STEERING SYSTEM PRECAUTION PARTS LOCATION SYSTEM DIAGRAM SYSTEM DESCRIPTION HOW TO PROCEED WITH TROUBLESHOOTING CALIBRATION PROBLEM SYMPTOMS TABLE TERMINALS OF ECU DIAGNOSIS SYSTEM DTC CHECK / CLEAR FREEZE FRAME DATA FAIL-SAFE CHART DATA LIST / ACTIVE TEST DIAGNOSTIC TROUBLE CODE CHART C1511 C1533 C1512 C1534 C1513 C1555 C1515 C1541 C1525 C1551 C1516 C1552 C1526 C1554 C1521 C1567 C1522 C1581 C1523 U0073 C1524 U0105 C1528 U0121 C1531 U0122 C1532 U0130 IG Power Source Circuit STEERING GEAR COMPONENTS REMOVAL DISASSEMBLY INSPECTION REASSEMBLY INSTALLATION POWER STEERING ECU COMPONENTS REMOVAL INSTALLATION EPS RELAY ON-VEHICLE INSPECTION