2.
Check that the brake warning lamp is ON after the release the parking brake with a sufficient brake fluid level.
If the brake warning lamp is ON, check the below points.
(1)
Is the brake warning lamp ON within 5 seconds after IGN ON?
 | ▶ Reinstall the vacuum pump connector after removing it. And if the brake warning lamp is ON within 5 seconds after IGN ON, replace the vacuum pump. |
 | ▶ Check the 2). |
(2)
Is the brake warning lamp ON within 45~55 seconds?
| ▶ Brake vacuum switch is normal condition. |
| ▶ Check the 3). |
(3)
Is the brake warning lamp ON within 15~30 seconds after removing the vacuum hose from the brake booster?
| ▶ Replace the vacuum pump |
| ▶ Vacuum pump is normal condition |
