Mike's Workshop Manuals
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5 Touring, 2.3 L
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Section 552 (Engine Control System (L3))
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Engine Coolant Temperature (ECT) Sensor Inspection [L3]
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Circuit Open/Short Inspection
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Notes
Circuit Open/Short Inspection: Notes
WARNING:
This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Engine Coolant Temperature Sensor And PCM Connector Terminals
Courtesy of MAZDA MOTORS CORP.
Disconnect the PCM connector.
Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)