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: Mechanical system test
Mechanical System Test Preparation 1. Engage the parking brake and use wheel chocks at the front and rear of the wheels. 2. Inspect the engine coolant. (See ENGINE COOLANT LEVEL INSPECTION.) 3. Inspect the engine oil. (See ENGINE OIL INSPECTION.) 4. Inspect the ATF levels. (See AUTOMATIC TRANS ...

Mazda 6 Service Manual: Engine coolant temperature (ect) sensor inspection
Note Perform the following inspection only when directed. ECT Sensor Resistance Inspection 1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.) 2. Remove the ECT sensor (located above the starter). 3. Place the ECT sensor in water with a thermometer, and heat the water gra ...