Battery, alternator and starter Mazda 121 (3)

Removal and installation the battery
The battery is located on the left side of the engine compartment. Caution: The wires from the battery must be disconnected only when the ignition is off, otherwise the...

Instructions for use of maintenance-free battery
During operation of the battery, it is occasionally necessary to add distilled water and perform some simple maintenance operations as part of technical maintenance. A...

Battery charge
Instructions marked with ♦ do not apply to the vehicle's standard maintenance-free battery. Caution: The engine must not be run with the battery disconnected, otherwise...

Checking the battery
Checking the electrolyte level The electrolyte level in individual cans should be between the "MIN" (1) and "MAX" (2) marks. If necessary, unscrew the plugs (3) and add...

Storage of the battery
To prevent aging, the battery removed from the car should be recharged every two months. Batteries that have not been used for a long time are subject to self-discharge...

Trouble diagnosis of the battery pack
Battery troubleshooting

General information about the generator
The cars are equipped with an alternator. Depending on the model and its configuration, generators of different power can be installed. The generator power is indicated...

Precautions when working with a generator
When working with an alternator, it is necessary to follow certain rules to avoid damage to the alternator and other parts. Complete disassembly and repair of the...

Checking the generator charging voltage
Connect a voltmeter between the positive and negative terminals of the battery. Start the engine. The voltage during the starting process may drop to 8 V (at an ambient...

Removal and installation the generator
Ford Fiesta/Mazda 121 with 1.3L engine Note: If the generator is seriously faulty, it can be replaced with a repaired one in a workshop. Removal Disconnect the negative...

Replacing and checking the contact brushes of the generator or voltage regulator
Note: The contact brushes can only be replaced separately on a Bosch generator. On other generators, the voltage regulator assembly must be replaced. Removal Disconnect...

Generator fault diagnostics
Generator fault diagnostics

General information about the starter
To start the engine, a small electric motor called a starter is needed. In order for the engine to start at all, the engine must be accelerated by the starter to about...

Removal and installation the starter
Ford Fiesta/Mazda 121 with 1.3L engine Removal Disconnect the negative cable from the battery. Note: This will erase data from electronic memory blocks and codes in the...

Checking, removing and installing the traction relay
If the traction relay is faulty, the starter drive pinion does not engage with the flywheel ring gear. Because of this, the starter cannot turn the engine. This fault is...

Starter fault diagnostics
If the starter does not turn, then the first thing to check is whether the voltage required for its operation, which is at least 10 V, is supplied to contact 50 of the...

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More sections on repairs of other Mazda models
• Electrical equipment: Power devices Mazda Familia 6 (1989-1994)
• Electrical equipment: Power devices Mazda Capella 3 and 4 (1982-1992)
• Electrical equipment: Power devices Mazda3 BK (2003-2009)
• Electrical equipment: Power devices Mazda6 GG (2002-2008)

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