Inspection Procedure

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

Fig 3: Identifying S37 & C11 Connector Terminals

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1. Disconnect the S37 and C11 connectors.
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