11 System pass, no fault found during self test
How to read it
Code 11 reads as 1 flash, pause, 1 flash 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 11 mean?
11. System pass, no fault found during self test. This code sets when your vehicle computer detects system pass, no fault found during self test.
Common causes of 11
- Self test ran to completion with no faults stored
- All monitored circuits reported in range during the test
- A recent repair cleared the fault and the system now passes
- Battery power was interrupted and cleared stored codes before the test
- No fault is present at the time of testing
How to fix 11
- Treat code 11 as a pass, not a fault, and do not replace parts for it
- Continue to the next code if more codes follow in the flash sequence
- If a symptom remains, road test the vehicle and retest to catch an intermittent fault
- Check under the conditions that trigger the symptom before calling the system healthy
- Retest after any repair to confirm the pass still holds