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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 128 (Rear Seat Entertainment System - Diagnostics) >> Power Source Circuit (Multi-Display Controller Sub-ASSY) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT MULTI-DISPLAY CONTROLLER SUB-ASSY (+B1, ACC, GND) 
    1. Disconnect the multi-display controller sub-assy connectors.
    2. In order to check for an open circuit, measure the resistance between the terminals according to the condition, as shown in +B1, ACC, GND (OPEN CIRCUIT)  .

      Standard: 

      +B1, ACC, GND (OPEN CIRCUIT)

      Tester connection Condition Specified condition
      GND - Body ground Always Below 1 Ω
    3. Check the voltage between the terminals according to the conditions, as shown in +B1, ACC, GND (VOLTAGE)  .

      Standard: 

    +B1, ACC, GND (VOLTAGE)

    Tester connection Condition Specified condition
    +B1 - GND Always 10 to 14 V
    ACC - GND Ignition SW ACC 10 to 14 V
    Fig 1: Inspecting Multi-Display Controller Sub-Assy (+B1, ACC, GND)
    G02630413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. CHECK FOR PROBLEM SYMPTOMS TABLE 
    1. (See PROBLEM SYMPTOMS TABLE  ).

    Result: 

    PROBLEM SYMPTOMS TABLE

    A Suspected areas are cleared
    B Suspected areas still exist
    1. B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  
    2. A: REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY