626 Converter clutch solenoid circuit failure KOEO
How to read it
Code 626 reads as 6 flashes, pause, 2 flashes, pause, 6 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 626 mean?
626. Converter clutch solenoid circuit failure KOEO. This code sets when your vehicle computer detects converter clutch solenoid circuit failure koeo.
Common causes of 626
- Faulty torque converter clutch solenoid
- Open or shorted wiring in the torque converter clutch solenoid circuit
- Corroded or loose connector at the torque converter clutch solenoid
- Low or dirty transmission fluid
- Faulty PCM transmission control
How to fix 626
- Confirm the code and check the transmission fluid level and condition
- Inspect the torque converter clutch solenoid and its wiring for damage and corrosion
- Test the torque converter clutch solenoid circuit
- Service the fluid before condemning internal parts
- Replace a failed part only after the circuit test fails