Mazda vehicles used both vacuum actuated and electric stepper motor type cruise control systems. The actuator, located in the engine compartment, will have a vacuum line and electrical wires connected to it if it is a vacuum model. Electric stepper motor type units will have no vacuum line connected to the actuator.
| Fig. 1: Typical cruise control components and locations
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| Fig. 2: Exploded view of a vacuum actuator with electric
vacuum pump mounted beneath
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| Fig. 3: Test the actuator by applying vacuum to it
and ensuring that the diaphragm pulls, and it holds vacuum
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