RX7 2RTR-1308cc 1.3L MFI (1991)
Data Link Connector: Testing and Inspection
Grounding Test Connector Pin
The Test Connector is a green, one pin connector located in the engine compartment. When grounded, the test connector activates the self-diagnostic
system and causes the dash mounted "CHECK" light to flash malfunction codes.
Test connector signal can be checked at ECU terminal 1I, ignition switch "ON." With test connector grounded, terminal voltage should be
approximately 0V. With connector not grounded, voltage should be approximately 12V. If not as specified, check wiring between test connector and
ECU.