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Home >> Mazda >> 1979 >> B2000 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - Catalytic Converter >> Testing >> Heat Hazard Warning System >> Warning Light Test
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Warning Light Test

Turn ignition on. Warning lamp should also come on. Start engine and warning lamp should go off. Disconnect the coupler of the heat hazard sensor (under floor mat). Connect a jumper wire to both terminals in the coupler. The warning lamp should come on.

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