FixVault

Ignition Switch & Key Unlock Warning System: Inspection

  1. INSPECT IGNITION SWITCH CONTINUITY 
    Fig 1: Inspecting Ignition Switch Continuity
    G02837621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Ignition Switch Continuity Reference Table
    G02837620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the continuity is not as specified, replace the switch.

  2. INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY 
    Fig 3: Inspecting Key Unlock Warning Switch Continuity
    G02837622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    KEY UNLOCK WARNING SWITCH CONTINUITY SPECIFICATIONS

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

    If the continuity is not as specified, replace the switch.

  3. INSPECT IGNITION RELAY (Marking: IG1) CONTINUITY 
    Fig 4: Inspecting Ignition Relay (Marking: IG1) Continuity
    G02837624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    IGNITION RELAY (MARKING: IG1) CONTINUITY SPECIFICATIONS

    Condition Tester connection Specified condition
    Constant 1 - 2 Continuity
    Apply B+ between terminals 1 and 2. 3 - 5 Continuity

    If the continuity is not as specified, replace the relay.

  4. INSPECT ACCESSORY RELAY (Marking: ACC) CONTINUITY 
    Fig 5: Inspecting Accessory Relay (Marking: ACC) Continuity
    G02837626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    ACCESSORY RELAY (MARKING: ACC) CONTINUITY SPECIFICATIONS

    Condition Tester connection Specified condition
    Constant 1 - 2 Continuity
    Apply B+ between terminals 1 and 2. 3 - 5 Continuity

    If the continuity is not as specified, replace the relay.

  5. INSPECT KEY UNLOCK WARNING BUZZER 

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

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

    Fig 6: Identifying Key Unlock Warning Buzzer Blowing Pattern
    G02837627Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002