Mazda 3 Service Manual: Filament Inspection

Mazda 3 Service Manual / Body / Glass & Windows / Filament Inspection

1. Turn the ignition switch to the ON position.

2. Turn the rear window defroster switch on.

CAUTION:

Directly touching the rear window defroster filament with the lead of the tester could damage it. Wrap aluminum foil around the end of the lead and inspect the filament by touching it with the foil.

3. Connect the positive lead of the tester to the positive side of each filament and the negative lead to ground.

4. Gradually slide the positive lead from the positive side to the negative side and verify that the voltage decreases accordingly.

If the voltage changes rapidly, the filament has a malfunction. Repair the filament.

Measured part

Voltage (Reference)

(1) to (2)

Approx. 11 V to 0 V

Base Removal

1. Remove the rearview mirror.. 2. Wind each end of a wire around a bar. WARNING: Using the piano wire with bare hands can cause injury. Always wear gloves when using the piano wire ...

Filament Repair

1. Clean the filament using isopropyl alcohol. 2. Attach tape to both sides of the filament. 3. Using a small brush or marking pen, apply silver paint. 4. After 2—3 min, carefully remove t ...

Other materials:

Quarter Window Glass Removal
1. Remove the following parts: a. Rear seat cushion. b. Rear scuff plate. c. Tire house trim. d. Trunk side upper trim. e. C-pillar trim. 2. Apply protective tape along the edge of the body and the quarter window glass. NOTE: For the areas of the sealant that are difficult ...

Precaution [ABS]
1. Any one or a combination of the ABS warning and brake system warning lights illuminates even when the system is normal. Warning lights that may illuminate and/or flash Cases in which the light may illuminate Conditions in which the light will go ou ...

Wheel Unit ID Registration
NOTE: After the wheel unit replacement, registration of the wheel unit identification codes must be performed. ID registration can be done using the M-MDS, or not using the M-MDS. Using M-MDS 1. Connect the M-MDS to DLC-2. 2. After the vehicle is identified, select th ...