DTC 74

DTC 74: Yaw Rate Sensor (Software)
1. Connect the HDS to the DLC.
2. Turn the ignition switch ON (II).
3. On the HDS, select ABS TCS VSA, then DATA LIST. Check YAW RATE S.
Is YAW RATE S within ± 5°s?
YES - Go to step 4.
NO - Check the installation of the yaw rate-lateral acceleration sensor. Replace the yaw rate-lateral acceleration sensor.
4. Clear the DTCs using the HDS.
5. Turn the ignition switch OFF, then disconnect the HDS.
6. Test-drive the vehicle around a number of corners.
Does the VSA indicator come on, and is DTC 74 indicated?
YES - Go to step 7.
NO - Intermittent failure; the most probable cause is that vehicle might have spun around on a poor road surface. The system is OK at this time.
7. Substitute a known-good yaw rate-lateral acceleration sensor.
8. Clear the DTCs using the HDS.
9. Turn the ignition switch OFF, then disconnect the HDS.
10. Test-drive the vehicle around a number of corners.
Does the VSA indicator come on, and is DTC 74 indicated?
YES - Replace the VSA modulator-control unit.
NO - Replace the original yaw rate-lateral acceleration sensor.