Yaw Rate Sensor Check

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Honda Odyssey, 2003 Honda Odyssey, 2002 Honda Odyssey, 2001 Honda Odyssey, and 2000 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Perform the start-up procedure (see System Diagnosis Test ).
Select yaw rate.
The yaw rate offset and sensor should indicate 1.500 to 3.500 V with the vehicle stopped. If either is zero or five volts (0.00 V or 5.00 V), replace the navigation unit.
The yaw rate offset and sensor should be within +/-0.01 V of each other with the vehicle stopped. The sensor value should change relative to offset as the car is turned while driving. If not, replace the navigation unit.

Fig 1: Yaw Rate Sensor Check (Example)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: The next check will need to be done as the vehicle is driven. You may want to save this test until last. Have a helper monitor the screen as the vehicle is driven.
Select tuning.
Test drive the vehicle on a straight section of highway. While driving the vehicle, monitor the RED ARROW SHAPED ICON on the "Tuning" screen. Just under the icon you will see term "ANG-Disp" with an angle degree number written under it (for example: -4°).

The icon will leave a trail of "BREAD CRUMBS" as it moves across the screen from left to right. It takes approximately 1/2 mile to cover the screen.

As you drive the vehicle, the angle degree number should be 0° ( +/-3°). If after 1/2 mile the number exceeds 0° ( +/-3°), replace the navigation unit.

NOTE: This test relies on the vehicle being driven perfectly straight for 1/2 mile. If this not possible, the results of this test will be false. When possible compare your results to a known-good vehicle.