Function Inspection

WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Connect the M-MDS to the DLC-2.
Switch the ignition ON (engine off).
Display the PID ECT. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0)] .) (See PCM INSPECTION .)
Compare the voltage and temperature indications for the PID ECT with the standard in the table indicated below.
- If they do not match the standard, replace the PCM. (See PCM REMOVAL/INSTALLATION .)
- If they match the standard, perform the resistance inspection. (See RESISTANCE INSPECTION .)

Standard

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}