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Home >> Lexus >> 2005 >> SC 430 >> Repair and Diagnosis >> Steering >> Power Steering >> Progressive Power Steering System - Diagnostics >> Problem Symptoms Table

Problem Symptoms Table

HINT:

Use table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

PROBLEM SYMPTOMS TABLE - POWER STEERING SYSTEM

Symptom Suspected Area
PPS does not operate
  1. 2. IG power source circuit
  2. 3. PPS solenoid circuit
  3. 4. Steering system
  4. 5. Skid control ECU assy
PPS DTC check cannot be performed
  1. Skid control ECU assy
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