LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2003 >> IS 300 Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Stop Lamp System >> Inspection

Stop Lamp System: Inspection

  1. INSPECT STOP LIGHT SWITCH CONTINUITY 
    SWITCH POSITION SPECIFIED CONDITION

    Switch position Tester connection Specified condition
    Switch pin pushed in (Pedal released) 1 - 2 Continuity
    Switch pin free (Pedal depressed) 1 - 2 No continuity
    Switch pin free (Pedal depressed) 3 - 4 Continuity
    Switch pin pushed in (Pedal released) 3 - 4 No continuity

    If continuity is not as specified, replace the switch.

    Fig 1: Identifying Stop Light Switch Connector Terminals
    G03379927Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. w/ Spoiler: INSPECT HI-MOUNTED STOP LIGHT ASSEMBLY CONTINUITY 

    Using the ohmmeter, check that continuity exists between terminals.

    If continuity is not as specified, replace the bulb or light assembly.

    Fig 2: Identifying Hi-Mounted Stop Light Assembly Connector Terminals
    G03379928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT STOP LIGHT SWITCH CIRCUIT (See page DI-688) 

    Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown.

    Fig 3: Identifying Stop Light Switch Connector Terminals
    G03379929Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION SPECIFIED CONDITION

    Tester connection Condition Specified condition
    2 - Ground Always Battery Positive Voltage

    If circuit is not as specified, inspect the power source or wire harness.