mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 3077 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 3075
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3. Inspect the following wiring harnesses for open or short circuit. (Continuity inspection)

Open circuit

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If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the wiring harness.
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ECT sensor terminal A and PCM terminal 2K

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ECT sensor terminal B and PCM terminal 1U

Short circuit

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If there is continuity at the following wiring harnesses, there is a short circuit. Repair or replace the wiring harness.
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ECT sensor terminal A and body ground

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ECT sensor terminal A and power supply

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 3077 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 3075