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Home >> Lexus >> 2006 >> LS 430 >> Repair and Diagnosis >> Steering >> Power Steering >> Progressive Power Steering System - Diagnostics >> Fail-Safe Chart

Fail-Safe Chart

  1. If a malfunction in the progressive power steering system is detected, steering effort increases and is maintained at a constant level.
    FAIL-SAFE CHART

    Malfunction Items Computer Output Fail-Safe Operation
    There is a short in the PPS linear solenoid valve assy or PPS linear solenoid valve circuit. Not output Steering effort increases and is maintained at a constant level.
    There is an open in the PPS linear solenoid valve assy or PPS linear solenoid valve circuit. Output Steering effort increases and is maintained at a constant level.
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