DTC 25-21: Yaw Rate Sensor (Inside of Modulator-Control Unit) Output Signal Malfunction

• No other DTCs detected

With the Driving Pattern:

• 1.

  Start the engine.

• 2.

  Test-drive the vehicle at 32 mph (50 km/h) or more and change lanes a few times.

  (Be careful of the surrounding traffic conditions.)

• 1 drive cycle
• VSA indicator on

• Degrade ABS performance
• Stop VSA function
• Stop TCS function (Fade out)
• Stop hill start assist function

• VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)