LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Power Mirror Control System - Diagnosis >> Pre-Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Power Mirror Control System - Diagnosis: Pre-Check

  1. INSPECT DRIVER SIDE J/B 
    1. Using hand-held tester, check the driver side J/B condition on the data monitor.

      Standard: 

      SPECIFIED CONDITION CHART

      Item Condition Specified condition
      OUTER MIRROR FOIL SW OFF --> Retract ON --> OFF
      OUTER MIRROR RETURN SW OFF --> Reinstate ON --> OFF
      MIRRSELSWL Right/Left adjustment switch in neutral --> LEFT ON --> OFF
      MIRRSELSWR Right/Left adjustment switch in neutral --> RIGHT ON --> OFF
      MIRR POS SW L Mirror switch in neutral --> LEFT ON --> OFF
      MIRR POS SW R Mirror switch in neutral --> RIGHT ON --> OFF
      MIRR POS SW UP Mirror switch in neutral --> UP ON --> OFF
      MIRR POS SW DWN Mirror switch in neutral --> DOWN ON --> OFF
  2. INSPECT DRIVER SEAT ECU AND PASSENGER SEAT ECU 
    1. Using hand-held tester, check the condition of the driver seat ECU and passenger seat ECU on the data monitor.

      Standard: 

      SPECIFIED CONDITION CHART

      Item Condition Specified condition
      D-MIRR MEN 1 Memorized in 1 MEN/NOT MEN
      D-MIRR MEN 2 Memorized in 2 MEN/NOT MEN
      P-MIRR MEN 1 Memorized in 1 MEN/NOT MEN
      P-MIRR MEN 2 Memorized in 2 MEN/NOT MEN
      D-MIRR MEN POS 1 Memorized in 1 0-5000
      D-MIRR MEN POS 2 Memorized in 2 0-5000
      P-MIRR MEN POS 1 Memorized in 1 0-5000
      P-MIRR MEN POS 2 Memorized in 2 0-5000
      PNPSW Shifted in P range ON/OFF
      NSW Shifted in N range ON/OFF
      VEHICLE SPD While driving 0 <--> 255 km/h
  3. PERFORM ACTIVE TEST (DOOR ECU) 
    1. Using hand-held tester, check the operation of the power mirror.

      Standard: 

      SPECIFIED CONDITION CHART

      Item Specified condition
      MIRR UP/DOWN UP/OFF
      MIRR UP/DOWN DOWN/OFF
      MIRRRIGHIT/LEFT LEFT OFF
      MIRRRIGHIT/LEFT RIGHT OFF
      MIRRFOLD/RETRN FOLD OFF
      MIRRFOLD/RETRN RETRN OFF