70 EEC IV data transaxle circuit failed
How to read it
Code 70 reads as 7 flashes, pause, 0 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 70 mean?
70. EEC IV data transaxle circuit failed. This code sets when your vehicle computer detects eec iv data transaxle circuit failed.
Common causes of 70
- Open or shorted transaxle data circuit
- Faulty transaxle control module
- Corroded connector
- Internal transmission fault
- PCM communication fault
How to fix 70
- Confirm the code and inspect the transaxle data circuit wiring
- Check the transaxle control module connector for corrosion
- Test the data circuit for continuity and shorts
- Repair wiring before replacing the module
- Replace the module only after the circuit test fails