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.
2020 Mazda CX-30 Base, AWDFACTORY OEM SERVICE PROCEDURE
Function inspection
- Connect the M-MDS to the DLC-2.
- Switch the ignition ON (engine off).
- Display the PID ECT_VOLT and ECT. (See PID/DATA MONITOR INSPECTION .)
- Compare the voltage indications for PID ECT_VOLT and the temperature indications for PID ECT with the standards in the table indicated below.
- If they do not match the standard, perform the resistance inspection. (See RESISTANCE INSPECTION .)
STANDARD VOLTAGE SPECIFICATION
| ECT_VOLT | ECT |
|---|---|
| V | °C {°F} |
| Approx. 3.10 | 20 {68} |
| Approx. 2.16 | 40 {104} |
| Approx. 1.40 | 60 {140} |
| Approx. 0.87 | 80 {176} |
| Approx. 0.54 | 100 {212} |
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.