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Ignition Switch & Key Unlock Warning System: Inspection

  1. INSPECT IGNITION SWITCH CONTINUITY 
    Fig 1: Identifying Ignition Switch Connector Terminals
    G02854827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    IGNITION SWITCH CONTINUITY

    Switch Position Tester Connection Specified Condition
    LOCK - No Continuity
    ACC 1 - 3 Continuity
    ON 1 - 2 - 3 Continuity
    ON 5 - 6 Continuity
    START 1 - 2 Continuity
    START 4 - 5 - 6 Continuity

    If continuity is not as specified, replace the switch.

  2. INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY 
    Fig 2: Identifying Key Unlock Warning Switch Terminals
    G02854828Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    KEY UNLOCK WARNING SWITCH CONTINUITY

    Switch position Tester connection Specified condition
    OFF (key removed) - No continuity
    ON (key set) 1 - 2 Continuity

    If continuity is not as specified, replace the switch.

  3. INSPECT KEY UNLOCK WARNING BUZZER 

    Check the buzzer sound when driver's door is opened and key inserted.

    If operation is not as specified, replace the combination meter (See REMOVAL )

    Fig 3: Inspecting Key Unlock Warning Buzzer
    G02854829Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002