Yaw Sensor
This diagnosis checks the gyro in the audio-navigation unit. This device detects when the vehicle turns, and repositions the vehicle position icon on the map screen.
- Sensor: Indicates the voltage output from the gyro. It should indicate about 2.300 V-2.700 V when the vehicle is stopped.
- Offset: Indicates the reference voltage or standard within the gyro. It also should indicate about 2.300 V-2.700 V when the vehicle is stopped.
- A sensor output voltage HIGHER than the Offset voltage indicates that the vehicle is turning to the right.
- A sensor output voltage LOWER than the Offset voltage indicates that the vehicle is turning to the left.
- The Offset and Sensor should both indicate about 2.300 V-2.700 V when the vehicle is stopped. If either reads below 2.300 V, or above 2.700 V, replace the audio-navigation unit.
- The Offset and Sensor should be within +/-0.01 V of each other when the vehicle is stopped. The Sensor value should change relative to the Offset as the vehicle turns while driving. If not, replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
- Auto Tuning: For factory use only. This setting should be ON.
- Learning Level: Displays the status of the internal tuning function. At initialization, this value starts at 0 and increases to 10 as the internal correction values become more accurate.
- CCW Factor, CW Factor: For factory use only.
- GyroAD: Displays the result of the AD value (OK/NG). If NG, check for the Navigation DTCs (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS) ).
- GyroZero: Displays the result of the zero point output voltage (OK/NG). If NG, check for the Navigation DTCs (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS) ).