Inspection Procedure

HINT:

Start the inspection from step 1 in case of using the hand-held tester and start from step  2 in case of not using hand-held tester.

1. READ VALUE OF HAND-HELD TESTER 
   1. Operate the hand-held tester according to the steps on the display and select the "DATA LIST".

      MTR (Combination meter): 

      READ VALUE OF HAND-HELD TESTER (MTR (COMBINATION METER))
      
      

      Item	Measurement Item/ Range (Display)	Normal Condition	Diagnostic Note
      ODO/TRIPSW	ODO / TRIP switch is OFF / ON	ON: Switch is pushed OFF: Switch is released	-

   1. OK: REPLACE COMBINATION METER ASSY (See  OVERHAUL  ) 
   2. NG: Go to next step 
2. INSPECT LIGHT CONTROL RHEOSTAT 
   1. Measure the resistance according to the value(s) in LIGHT CONTROL RHEOSTAT TERMINALS RESISTANCE  .
      LIGHT CONTROL RHEOSTAT TERMINALS RESISTANCE
      
      

      Terminal No	Condition	Specified condition
      4 - 1	ODO/TRIP SW OFF --> ON	Less than 1 Ω --> More than 10kΩ

      Fig 1: Identifying Light Control Rheostat Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE LIGHT CONTROL RHEOSTAT 
   2. OK: Go to next step 
3. CHECK HARNESS AND CONNECTOR (BETWEEN LIGHT CONTROL RHEOSTAT AND COMBINATION METER ASSY) (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   1. Disconnect the C9, R6 connectors.
   2. Measure the resistance according to the value(s) in LIGHT CONTROL RHEOSTAT AND COMBINATION METER ASSY TERMINALS RESISTANCE  .

      Standard: 

      LIGHT CONTROL RHEOSTAT AND COMBINATION METER ASSY TERMINALS RESISTANCE
      
      

      Tester Connection	Specified Condition
      C9-13 - R6-1	Below 1 Ω
      C9-17 - R6-4	Below 1 Ω
      C9-13 - Body ground	10 kΩ or higher
      C9-17 - Body ground	10 kΩ or higher

      Fig 2: Disconnecting Combination Meter Assy Connector C9

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: REPLACE COMBINATION METER ASSY (See  OVERHAUL  )