Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Mazda 5 L4-2.5LFACTORY OEM SERVICE PROCEDURE
Power Window Subswitch Inspection
POWER WINDOW SUBSWITCH INSPECTION
Passenger Side
1. Disconnect the negative battery cable.
2. Remove the passenger-side inner garnish. Inner Garnish Removal/Installation
3. Remove the passenger-side front door trim. Front Door Trim Removal/Installation
4. Remove the passenger-side power window subswitch. Overhaul
5. Connect the passenger-side power window subswitch connector.
6. Connect the negative battery cable.
7. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table.
- If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
- If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the passenger-side power window subswitch. Power Window Subswitch Removal/Installation
Terminal Voltage Table (Reference)
Rear Side
1. Disconnect the negative battery cable.
2. Remove the rear side trim. Rear Side Trim Removal/Installation
3. Remove the rear power window subswitch. Rear Side Trim Removal/Installation
4. Connect the rear power window subswitch connector.
5. Connect the negative battery cable.
6. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table.
- If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
- If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the rear power window subswitch. Power Window Subswitch Removal/Installation
Terminal Voltage Table (Reference)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.