LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 1990 >> Protege L4-1839cc 1.8L DOHC >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Control Module >> Testing and Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Control Module: Testing and Inspection


1. With ignition switch "ON," check EC-AT control unit terminal voltages, referring to pin voltage chart.
2. If not correct, check and replace or repair defective component(s) and/or wiring.
3. If voltages are not correct and no other cause is detected, replace control unit.

PIN VOLTAGE CHART

Part 1

EC-AT Control Unit Pin Voltage Chart (Part 1):






Part 2

EC-AT Control Unit Pin Voltage Chart (Part 2):