Resistance Inspection

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
2. Disconnect the air bypass valve connector. (See DYNAMIC PRESSURE TURBO REMOVAL/INSTALLATION .)
3. Inspect the resistance between air bypass valve terminals A and B.

Courtesy of MAZDA MOTORS CORP.

Air bypass valve resistance 

12.7-13.7 ohms [23°C {73°F}]

• If not within the specification, replace the dynamic pressure turbo. (See DYNAMIC PRESSURE TURBO REMOVAL/INSTALLATION .)