DTC Troubleshooting: 25
DTC 25:
 Yaw Rate-lateral Acceleration Sensor Stabilizing Malfunction
NOTE: If DTC 112 is stored at the same time as DTC 25, troubleshoot DTC 112 first, then recheck for DTC 25.
Are any DTCs indicated?
YES -
Troubleshoot the indicated VSA system DTC(s).■
NO -
Go to Step 2 .
  1. Test-drive the vehicle at 30 km/h (19 mph) or more, and turn the main switch to ON.
  1. Test-drive with the adaptive cruise control (ACC) activated, and watch the ACC indicator.
Does the ACC indicator come on?
YES -
Go to Step 5 .
NO -
Intermittent failure. The system is OK at this time. Check for loose or poor connections.■
Is DTC 25 indicated?
YES -
Go to Step 6 .
NO -
Troubleshoot the indicated DTC(s).■
  1. Test-drive the vehicle in a straight line with the ACC activated, check the YAW RATE S with the HDS.
Is about 2.5 V indicated?
YES -
Go to Step 7 .
NO -
  1. Turn right with the ACC activated, and check the YAW RATE S with the HDS.
Does the voltage increase from 2.5 V?
YES -
Go to Step 8 .
NO -
  1. Turn left with the ACC activated, and check the YAW RATE S with the HDS.
Does the voltage decrease from 2.5 V?
YES -
The yaw rate-lateral acceleration sensor signal is OK, check for loose or poor connections. If the connections are OK, update the ACC unit, then recheck. If the ACC unit was already updated, replace the ACC unit. ■
NO -