Resistance Inspection

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Remove the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Verify that there is no continuity between the throttle body and throttle body each terminal using an ohmmeter.
- If not as specified, replace the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Fig 1: Checking Continuity Between Each Terminal Of The Throttle Body
Courtesy of MAZDA MOTORS CORP.

Measure the resistance between the throttle actuator terminals using an ohmmeter.

If not as specified, replace the throttle body.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
If as specified, carry out the "Circuit Open/Short Inspection".

Throttle actuator resistance

Ambient temperature (°C {°F})	Resistance (ohm)
Approx. 20 {68}	0.3-100

Fig 2: Identifying Throttle Actuator Terminals

Courtesy of MAZDA MOTORS CORP.