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
   SPEED METER	0 / 40 (24) / 80 (48) /120 (72) /160 (96) / 200 (120) km/h (mph)	-

   OK: Needle indication is within the allowable range. 

NG : REPLACE COMBINATION METER ASSEMBLY 

OK : GO TO NEXT STEP 

1. Operate the intelligent tester according to the steps on the display and select "DATA LIST".

   METER: 

   METER
   
   

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   SPEED METER	Vehicle speed / Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost same as actual speed (When driving)	-

   OK: Vehicle speed displayed on the tester is almost the same as the actual vehicle speed. 

NG : Go to step 3 

OK : REPLACE COMBINATION METER ASSEMBLY 

1. Operate the intelligent tester according to the steps on the display and select "DATA LIST".

   ABS / VSC / TRAC: 

   ABS / VSC / TRAC
   
   

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   (FL/FR/RL/RR) SPD	Vehicle speed / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Almost same as actual speed (When driving)	-

   OK: Vehicle speed displayed on the tester is almost the same as the actual vehicle speed. 

NG : GO TO  BRAKE CONTROL 

OK : GO TO NEXT STEP 

1. Check the input signal waveform.
   1. Remove the combination meter assembly with connector(s) still connected.
   2. Connect the oscilloscope to the terminals C9-18 (SPEED SIGNAL) and body ground.
   3. Start the engine.
   4. Check the signal waveform according to the condition(s) in the table below.
      COMBINATION METER ASSEMBLY
      
      

      Item	Condition
      Tool setting	5 V/DIV., 20 ms/DIV.
      Vehicle condition	Driving at approx. 20 km/h (12 mph)

      Fig 1: Inspecting Combination Meter Assembly

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: The waveform is displayed as shown in the illustration. 

      HINT:

      As the vehicle speed increases, the cycle of the signal waveform narrows.

NG : Go to step   6 

OK : GO TO NEXT STEP 

1. Disconnect the S39 connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   COMBINATION METER ASSEMBLY VOLTAGE
   
   

   Tester Connection	Condition	Specified Condition
   S39-22 (SPEED SIGNAL) - Body ground	Ignition switch ON	10 to 14 V

   Fig 2: Inspecting Combination Meter Assembly Voltage

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPLACE ABS & TRACTION ACTUATOR ASSEMBLY 

OK : REPLACE COMBINATION METER ASSEMBLY 

1. Disconnect the C9 and S39 connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   COMBINATION METER AND ABS & TRACTION ACTUATOR ASSEMBLY
   
   

   Tester Connection	Condition	Specified Condition
   C9-18 (SPEED SIGNAL) S39-22 (SP1)	Always	Below 1 Ω
   C9-18 (SPEED SIGNAL) - Body ground	Always	10 kΩ or higher

   Fig 3: Checking Harness And Connector (Combination Meter And ABS & Traction Actuator Assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE COMBINATION METER ASSEMBLY