622 Shift solenoid 2 circuit failure KOEO
How to read it
Code 622 reads as 6 flashes, pause, 2 flashes, pause, 2 flashes on the check-engine light. Jumper the self-test input to signal return at the test connector, then run the key on engine off self test and the running self test, counting the check-engine flashes each time.
New to flash codes? The OBD-I code reading guide walks through the paperclip method, code 12, and reading two-digit codes.
What does Ford code 622 mean?
622. Shift solenoid 2 circuit failure KOEO. This code sets when your vehicle computer detects shift solenoid 2 circuit failure koeo.
Common causes of 622
- Wiring
- ECM
How to fix 622
- Check the circuit wiring and harness for damage, chafing or a poor splice
- Test the ECM last, only after every circuit test has passed
- Clear the code, then retest to confirm the fix holds