Malfunction Threshold
The PCM counts up if the pressure difference between the brake booster pressure and barometric pressure is more than -6 kPa (-1.7 inHg, -44 mmHg) for at least 2.1 seconds, and it counts up five times in a row.
The PCM counts up if the pressure difference between the brake booster pressure and barometric pressure is more than -6 kPa (-1.7 inHg, -44 mmHg) for at least 2.1 seconds, and it counts up five times in a row.