Conditions for Setting the DTC

All of the following must be true for C0021 to set.

• C0032 or C0033 or C0034 or C0035 not current
• ABS not active.
• Brake switch off.

The left front wheel speed equals 0, and all of the remaining Wheel Speed Sensors are greater than 8 km/h (5 mph) for at least 2.5 seconds.