mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 1876 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 1874
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1. Disconnect the PCM connector.
2. Inspect the following wiring harnesses for open or short. (Continuity inspection)

Open circuit

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If there is no continuity, the circuit is open. Repair or replace the wiring harness.
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CHT sensor terminal A and PCM terminal 2AL

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CHT sensor terminal B and PCM terminal 2AN

Short circuit

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If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
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CHT sensor terminal A and power supply

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CHT sensor terminal A and body ground

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CHT sensor terminal B and power supply

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 1876 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 1874