Mazda 6 Service Manual: Dtc c1955, c1956

Dtc c1953, c1954

Diagnostic procedure ...

Dtc u2021

Note To warm up the engine completely, idle the engine and wait for more than 5 minutes. Diagnostic procedure ...

Other materials:

Mazda 6 Service Manual: Engine Coolant Temperature Gauge (Without Multi-information Display)
Displays the engine coolant temperature. The white 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 engine coolant temperature gauge indicator flashes, there is a possibility ...

Mazda 6 Service Manual: 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 not as specified, replace the oil control valve. Specification 6.9-7.9 ohms 4. Connect ...