Mazda 3 Service Manual: Electrical

Pilot Bearing Inspection [C66 M R]

1. Without removing the pilot bearing, turn the bearing while applying force in the axial direction. If there is any malfunction, replace the pilot bearing.. ...

Electrical System

Electrical Parts Battery cable Before disconnecting connectors or removing electrical parts, disconnect the negative battery cable. Wiring Harness To remove the wiring ha ...

Other materials:

Variable Tumble Shutter Valve Switch Inspection [Mzr 2.0, Mzr 2.5]
Voltage Inspection NOTE: The variable tumble shutter valve switch cannot be removed as a single unit. When replacing the variable tumble shutter valve switch, replace it together with the intake manifold as a single unit. 1. Connect the M-MDS to the DLC–2. 2. Switch the ...

Crankshaft Position (CKP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing. ...

EGR Valve Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Disconnect the EGR valve connector. 4. Measure the resistance between the EGR valve terminals. EGR valve terminal Resistance inspection (ohm) ...