Mazda 6 Service Manual: Lubrication system

Oil control valve (ocv) inspection

L3 Coil Resistance Inspection 1. Disconnect the negative battery cable. 2. Disconnect the oil control valve connector. 3. Measure the resistance between terminals A and B using an ohmmeter. If ...

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Mazda 6 Service Manual: Heated oxygen sensor (ho2s) inspection
HO2S Voltage Inspection Note Perform the following inspection only when directed. 1. Warm up the engine and run it at idle. 2. Disconnect the HO2S connector. 3. Connect the voltmeter test leads to the following HO2S terminals: HO2S (front and rear) - (+) leadterminal A - (-) le ...

Mazda 6 Service Manual: Engine Coolant Temperature Gauge
Displays the engine coolant temperature. The blue gauge indicates that the engine coolant temperature is low, and the red gauge indicates that the engine coolant temperature is high and overheating. CAUTION If the high engine coolant temperature warning light (red) turns on, there is a pos ...