Inspection Procedure

1. Operate the intelligent tester according to the steps on the display and select "ACTIVE TEST".

   METER: 

   METER
   
   

   Item	Test Details	Diagnostic Note
   POWER METER	0 / 50 / 100 / 150 / 200 kW	Confirm that the vehicle is stopped, engine idling.

   OK: Needle indication is normal. 

NG : REPLACE COMBINATION METER ASSEMBLY 

OK : GO TO NEXT STEP 

1. Disconnect the C9 and H29 connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   BETWEEN COMBINATION METER AND HYBRID VEHICLE CONTROL ECU
   
   

   Tester Connection	Condition	Specified Condition
   C9-8 (POWER METER) - H29-4 (PMET)	Always	Below 1 Ω
   C9-8 (POWER METER) - Body ground	Always	10 kΩ or higher

   Fig 1: Checking Harness And Connector (Between Combination Meter And Hybrid Vehicle Control ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : GO TO NEXT STEP 

1. Check the input signal waveform.
   1. Remove the combination meter assembly with connector still connected.
      Fig 2: Inspecting Combination Meter Assembly

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 3: Input Signal Waveform

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Connect the oscilloscope to the terminals H29-4 (PMET) and body ground.
   3. Start the engine.
   4. Check the signal waveform according to he condition(s) in the table below.
      ITEM CONDITION
      
      

      Item	Condition
      Tool setting	1 V/DIV., 2 mu s/DIV.
      Vehicle condition	Turn the ignition switch to the ON position.

      OK : REPLACE COMBINATION METER ASSEMBLY 

      NG : GO TO  HYBRID VEHICLE CONTROLL (P310)