Inspection Procedure

1. Check the input signal waveform.
   1. Remove the combination meter assembly.
   2. Connect the oscilloscope to terminal C11-15 and body ground.
      Fig 1: Identifying C11 Connector Terminals

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   3. Start the engine.
   4. Check the signal waveform according to the condition(s) in the table below.

Fig 2: Identifying Signal Waveform Graph

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HINT:

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

NG:  Go to step  2

OK: REPLACE COMBINATION METER ASSEMBLY 

1. Disconnect the S37 and C11 connectors.
   Fig 3: Identifying S37 & C11 Connector Terminals

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2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE
   
   

   Tester Connection	Condition	Specified Condition
   S37-12 (SP1) - C11-15 (SP IN)	Always	Below 1 Ω
   S37-12 (SP1) - Body ground	Always	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE SKID CONTROL ECU ASSEMBLY