Inspection Procedure

HINT:

Operating the engine switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY AND BODY GROUND) 
   1. Disconnect the E77 combination meter connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Condition	Specified Condition
      E77-26 (ET) - Body ground	Always	Below 1 Ω

   3. Measure the voltage according to the value(s) in the table below.
   Fig 1: Checking Harness And Connector (Combination Meter - Battery And Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Switch Condition	Specified Condition
   E77-21 (B) - Body ground	Always	11 to 14 V
   E77-30 (IG+) - Body ground	Engine switch on (IG)	11 to 14 V

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )