RX7 2RTR-1308cc 1.3L MFI (1991)
1.
Turn blower and A/C switches "ON" (engine not running).
2.
Shift transmission into gear.
3.
Open throttle valve fully and verify that compressor magnetic clutch disengages ("click" is heard), then re-engages after approximately 7 seconds.
4.
If system does not operate as specified, check throttle sensor, wiring, connections and voltages at ECU terminals 1L, 1O, 1Q, 1R, 2G, 2I, and 3D.
5.
If not correct and no other problem is detected, suspect a defective ECU.