Inspection Procedure

1. Operate the Techstream according to the display and select Data List.

   Combination Meter 

   DIAGNOSTIC NOTE CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   ODO/TRIP Change SW	Trip switch (ODO/TRIP switch) condition/ON or OFF	ON: Trip switch pushed OFF: Trip switch not pushed	-

   OK: Switch condition (ON/OFF) can be switched by actual operation. 

NG: Go to step 2 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

1. Remove the light control rheostat (See REMOVAL  ).
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Switch Condition	Specified Condition
   4 (A/B) - 1 (E)	TRIP switch ON (Pushed)	Below 200 Ω
   	TRIP switch OFF (Not pushed)	1 MΩ or higher

   Fig 1: Identifying Light Control Rheostat Connector Terminal (Trip Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE LIGHT CONTROL RHEOSTAT  (See REMOVAL  )

OK: Go to next step. 

1. Disconnect the E8 ECU connector.
2. Disconnect the E9 switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   E8-4 (RSET) - E9-4 (A/B)	Always	Below 1 Ω
   E8-23 (E2) - E9-1 (E)
   E8-23 (E2) - Body ground
   E8-4 (RSET) or E9-4 (A/ B) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying E8 ECU Connector And E9 Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )