| Description |
In order to ensure adequate brake power assistance in every situation, the brake booster is equipped with a partial vacuum sensor. The brake booster vacuum pressure sensor is located beside the brake booster.

| Circuit Diagram |

| Inspection |
| 1. |
Check for loose connection of BBCPS and vacuum hose, and damage of vacuum hose. |
| 2. |
Connect KDS to DLC (Data Link Cable). |
| 3. |
Warm up the engine to normal operating temperature. |
| 4. |
Monitor "BBVPS" parameter on KDS. |