53 Throttle position sensor circuit above maximum voltage
How to read it
Code 53 reads as 5 flashes, pause, 3 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 53 mean?
53. Throttle position sensor circuit above maximum voltage. This code sets when your vehicle computer detects throttle position sensor circuit above maximum voltage.
Common causes of 53
- TP sensor loose
- Wiring short circuit to positive
- TP sensor
- ECM
How to fix 53
- Test the TP sensor and replace it only if it fails its own test
- Check the circuit wiring for a short to power
- Test the ECM last, only after every circuit test has passed
- Clear the code, then retest to confirm the fix holds