OVERBOOST Warning Switch
- Attach jumper wire between overboost warning switch and ground. If buzzer sounds, unit is functional, proceed to step 2).
- Remove overboost switch at the buzzer. Use an ohmmeter to verify continuity between buzzer connector (Brown/Yellow) and switch connection.
- Verify continuity between switch bracket and ground. If no continuity exists, disassemble and clean surface between bracket and body. Retest to confirm continuity.