Inspection Procedure

INSPECTION USING OSCILLOSCOPE 

1. Check the input signal waveform.
   1. Remove the combination meter assy.
   2. Connect the oscilloscope to the terminals C7-32 and body ground.
   3. Start the engine.
      Fig 1: Identifying Combination Meter Assy Connector Terminal C7-32

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   4. Check the signal waveform according to the condition (s) in the table below.
      ITEM CONDITION
      
      

      Item	Condition
      Tool setting	5 V/DIV, 20 ms/DIV
      Vehicle condition	Driving at approx. 20Km/h

1. Standard: 
2. As shown in the illustration 

HINT:

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

Fig 2: Oscilloscope Signal Waveform Graph

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B: Go to step 2 

C: Go to step   3 

A: Go To Next Step 

CHECK AND REPLACE COMBINATION METER ASSY 

1. Check voltage.
   1. Shift the shift lever to neutral.
   2. Jack up either of the front wheels.
   3. Turn the ignition switch to ON.
   4. Measure voltage between terminals S7-2 of the skid control ECU assy and body ground when the front wheel is turning slowly.
   1. Standard voltage: 
   2. Voltage is generated intermittently. 
   Fig 3: Identifying Skid Control ECU Assy Connector Terminal

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   Fig 4: Voltage Generation Graph

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NG: CHECK AND REPLACE SKID CONTROL ECU ASSY 

OK: Go To Next Step 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Check voltage.
   1. Shift the shift lever to neutral.
   2. Jack up either of the front wheels.
   3. Turn the ignition switch to ON.
   4. Measure the voltage between terminal S1-26 of the ABS & traction actuator assy and body ground when the front wheel is turning slowly.

1. Standard voltage: 
2. Voltage is generated intermittently. 

Fig 5: Identifying ABS & Traction Actuator Assy Connector Terminals

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Fig 6: Voltage Generation Graph

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NG: CHECK AND REPLACE ABS & TRACTION ACTUATOR ASSY 

OK: Go To Next Step 

REPAIR OR REPLACE HARNESS OR CONNECTOR