Combination Meter: Inspection

WARNING: This page is about a different car, the 2004 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUEL SENDER GAUGE ASSY
1. Check fuel sender gauge (main) resistance.
  1. Remove the fuel sender gauge.
  2. Measure resistance between terminals of fuel sender gauge for each float position, as shown in Fig 1 .
    Standard resistance:
    
    Fig 1: Main Fuel Sender Gage Assy. Resistance Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 2: Identifying Connector Terminals Of Main Fuel Sender Gage Assy.
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check fuel sender gauge (sub) resistance.
  1. Remove the fuel sender gauge.
  2. Measure resistance between terminals of fuel sender gauge for each float position, as shown in Fig 3.
    Standard resistance:
    
    Fig 3: Sub Fuel Sender Gauge Assy Resistance Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FRONT SEAT INNER BELT ASSY RH
1. Check continuity.
  1. Disconnect the connector from seat belt inner belt RH.
  2. Check continuity between terminals 2 and 5 when buckle switch condition, as shown in Fig 6.
    
    Fig 4: Front Seat Inner Belt Assy (RH) Continuity
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 5: Identifying Connector Terminals Of Front Seat Inner Belt Assy (RH)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FRONT SEAT INNER BELT ASSY LH
1. Check continuity.
  1. Disconnect the connector from seat belt inner belt RH.
  2. Check continuity between terminals 2 and 4 when buckle switch condition, as shown in Fig 6 .
    
    Fig 6: Front Seat Inner Belt Assy (LH) Continuity Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 7: Identifying Connector Terminals Of Front Seat Inner Belt Assy (LH)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT SEPARATE SEAT TYPE FRONT SEAT CUSHION PAD
1. Check that continuity exists between the terminal when pressing the sensing part of seat cushion.
INSPECT LEVEL WARNING SWITCH ASSY
1. Check washer level warning switch continuity.
2. Check that no continuity exists between terminals with switch OFF (float up).
3. Check that continuity exists between terminals with switch OFF (float down).
INSPECT BRAKE MASTER CYLINDER RESERVOIR SUB-ASSY
1. Check brake fluid warning switch continuity.
  1. Check that no continuity exists between terminals with switch OFF (float up).
  2. Check that continuity exists between terminals with switch OFF (float down).
INSPECT PARKING BRAKE SWITCH ASSY
1. Check parking brake switch continuity.
  1. Check that continuity exists between terminal and switch body with the switch ON (switch pin released).
  2. Check that no continuity exists between terminal and switch body with the switch OFF (switch pin pushed in).
INSPECT LIGHT CONTROL RHEOSTAT
1. Check continuity between terminal 1 and 2 of light control rheostat when light control rheostat operation as shown in the Fig 8 .
  
  Fig 8: Light Control Rheostat Terminals Continuity Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 9: Identifying Connector Terminals Of Light Control Rheostat
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check light control rheostat resistance.
  1. Measure the resistance between terminal 1 and 3 of light control rheostat.
    Standard resistance: Approx. 10 kΩ
  2. Measure the resistance between terminal 1 and 4 of light control rheostat when operating the light control rheostat. Check that the resistance value changes continuously.
    Standard resistance:
    
    When turned fully clockwise: Approx. 10 kΩ
    
    When turned fully counterclockwise: Approx. 0 kΩ