On-Vehicle Inspection

Inspect the power supply circuit for the intermediate sensor.
1. Set the battery and battery tray out of the way. (See BATTERY REMOVAL/INSTALLATION [MZR 2.5] .)
2. Disconnect the intermediate sensor connector.
  
  Fig 1: Identifying Intermediate Sensor
3. Switch the ignition to ON (engine off).
4. Measure the voltage at intermediate sensor connector terminal A (harness-side).
  
  Fig 2: Identifying Intermediate Sensor Harness-Side Connector Terminals
  - If there is any malfunction, repair wiring harness between intermediate sensor and TCM.
    Intermediate sensor specification
  - B
5. Switch the ignition to off (LOCK).
Inspect the GND circuit for the intermediate sensor.
1. Switch the ignition to off (LOCK).
2. Measure the voltage at intermediate sensor connector terminal C (harness-side).
  
  Fig 3: Identifying Intermediate Sensor Harness-Side Connector Terminals
  - If there is any malfunction, repair wiring harness between intermediate sensor and TCM.
    Intermediate sensor specification
  - Below 1.0 V
Inspect the signal circuit for the intermediate sensor.
1. Connect the oscilloscope to the following TCM connector terminals and set it as below.
  - (+) lead: TCM terminal 2L
  - (-) lead: battery negative terminal
  - Oscilloscope setting: 1 V/DIV (Y), 200 μs/DIV (X), DC range
2. Start the engine.
3. Measure the wave form when the following conditions are met.
  - Vehicle speed: 30 km/h {19 mph}
  - Gear position: 3 GR
    
    Fig 4: Vehicle Speed Sensor Waveform
  - If there is any malfunction, replace the intermediate sensor. (See INTERMEDIATE SENSOR REMOVAL/INSTALLATION .)