68 Idle tracking switch closed or transmission fluid over temperature
How to read it
Code 68 reads as 6 flashes, pause, 8 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 68 mean?
68. Idle tracking switch closed or transmission fluid over temperature. This code sets when your vehicle computer detects idle tracking switch closed or transmission fluid over temperature.
Common causes of 68
- Faulty idle tracking switch
- Misadjusted throttle linkage holding the switch closed
- Low or dirty transmission fluid
- Transmission overheating from towing or a restricted cooler
- Faulty transmission fluid temperature sensor
How to fix 68
- Confirm the code and check the throttle linkage adjustment
- Test the idle tracking switch through the throttle range
- Check transmission fluid level and condition if the code is heat related
- Inspect the transmission cooler for a restriction
- Repair wiring or replace the switch or sensor only after the tests