63 Throttle position sensor circuit below minimum voltage
How to read it
Code 63 reads as 6 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 63 mean?
63. Throttle position sensor circuit below minimum voltage. This code sets when your vehicle computer detects throttle position sensor circuit below minimum voltage.
Common causes of 63
- Loose or misadjusted throttle position sensor
- Open circuit or short to ground in the sensor wiring
- Faulty throttle position sensor
- Corroded connector
- PCM reference voltage fault
How to fix 63
- Confirm the code and check the sensor mounting and adjustment
- Inspect the sensor wiring for an open or a short to ground
- Watch the sensor signal while opening the throttle slowly
- Repair wiring before replacing the sensor
- Replace the sensor only after the wiring test fails