Lost Communication with Power Source Control (B278C)
ComponentsLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: EPS Warning Light Circuit
DESCRIPTION If the power steering ECU assembly detects a malfunction, the power steering ECU assembly stores a DTC and illuminates the EPS warning light. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
If the power steering ECU assembly has been replaced, perform assist map writing and torque sen ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vacuum Switching Valve (for Acis): Removal
REMOVAL PROCEDURE 1. REMOVE V-BANK COVER SUB-ASSEMBLY Click here 2. REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) (a) Disconnect the No. 1 vacuum switching valve assembly (for ACIS) connector. (b) Disconnect the 2 vacuum hose assemblies from the No. 1 vacuum switching v ...