Typical Diagnostic Reference Values

Footnotes are referenced throughout the Typical Diagnostic Reference Value Charts. A letter in parentheses next to a value indicates supplemental information is applicable.

An attempt is made to provide as much information as possible; some vehicles may not display all input and output signals.

Reference values may vary 20% depending on operating conditions, engine load, temperature, altitude, vehicle speed and other factors. RPM values are axle and tire dependent. Refer to PARAMETER IDENTIFICATION (PID) , for PID descriptions.

Values are taken at an altitude of approximately 182.9 m (600 ft) above sea level.

Refer to Introduction, ACRONYMS AND DEFINITIONS for technical terms applicable to Ford Motor Company products.

For detailed transmission diagnostics, refer to the Workshop article.

1. Value may vary 20% depending on altitude, operating conditions, weather, and other factors.
2. Value is dependent upon ambient air temperature and may fall outside of range.
3. Value is dependent on fuel tank level. Typical operating range is 15% (empty) to 85% (full).
4. Value is not useful under this condition.