DTC 25-121: Yaw Rate Sensor (Inside of Modulator-Control Unit) Output Signal Malfunction

• No other DTCs detected

With the Driving Pattern:

• Start the engine.
• Test-drive the vehicle at 10 mph (15 km/h) or more for at least 3 seconds.

  (Be careful of the surrounding traffic conditions.)

• 1 drive cycle
• VSA indicator on

• Stop VSA function
• Stop TCS function
• Stop brake assist function
• Stop hill start assist function

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