DTC 21: Yaw Rate Sensor Error; DTC 22: Yaw Rate Sensor Center Position Revision Value Error
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC 112 is stored at the same time as DTC 21, troubleshoot DTC 112 first, then recheck for DTC 21 or DTC 22.
- Check for VSA system DTCs with the HDS (see
PUMP MOTOR
).
Are any DTCs indicated?
YES -Troubleshoot the indicated VSA system DTC(s).
NO -Go to step 2.
- Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
- Turn the ignition switch to ON (II), then wait for 10 seconds.
- Watch the ACC indicator.
Does the ACC indicator (amber) come on?
YES -Go to step 5.
NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Check for DTCs with the HDS (see HOW TO CLEAR DTCS
).
Is DTC 21 or DTC 22 indicated?
YES -Go to step 6.
NO -Troubleshoot the indicated DTC(s).
- With the vehicle parked on level ground, check the YAW RATE SENSOR with the HDS.
Is about 2.5 Vindicated?
YES -The yaw rate-lateral/longitudinal acceleration sensor signal is OK, check for loose or poor connections. If OK, replace the ACC unit (see ADAPTIVE CRUISE CONTROL (ACC) UNIT REMOVAL/INSTALLATION ).
NO -Go to the VSA system troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ).