Toyota Avalon Service & Repair Manual > Power Steering System(for Hv Model): Assist Map Number Mismatch (C1582)
DESCRIPTION When an incorrect hybrid vehicle control ECU, main body ECU (multiplex network body ECU) or skid control ECU (brake booster with master cylinder assembly) is installed after the assist map has been written to the power steering ECU (rack and pinion power steering gear assembly), DTC C158 ...
