VEHICLE STABILITY CONTROL SYSTEM(for Vacuum Brake Booster), Diagnostic DTC:C1421, C1281, C1423, C1424

Either condition is met:

1. With the IG1 terminal voltage between 9.5 and 17.4 V, the VCM terminal voltage is not between 4.4 and 5.6 V for 1.2 seconds or more.

2. When the VCM terminal voltage is between 4.8 and 5.2 V, the PMC terminal voltage is not between 0.19 and 4.57 V for 1.2 seconds or more.

One of the following conditions is met:

1. Noise occurs in the PMC terminal signal 7 times or more within 5 seconds.

2. When the vehicle speed drops from 40 km/h (25 mph) to 10 km/h (6 mph), the master cylinder pressure does not change by at least 0.048 MPa.

3. At a vehicle speed of 7 km/h (4.3 mph) or more, the PMC terminal voltage is between 0.86 and 1.0 V and the master cylinder pressure does not change by at least 0.048 MPa for 60 seconds or more.

4. At a vehicle speed of 7 km/h (4 mph) or more, the PMC terminal voltage is 1.0 V or more and the master cylinder pressure does not change by at least 0.048 MPa for 30 seconds or more.

5. At a vehicle speed of 7 km/h (4 mph) or more with the stop switch on, a state in which the pressure sensor input value is sufficiently more than the estimated master pressure continues for 1 second or more and this state occurs 5 or more times each time the ignition switch is turned to ON, and this occurs 8 or more times consecutively.