Maintenance and Specifications
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
Engine/ServiceEngineSoon light illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
Engine/ServiceEngineSoon light to illuminate. Examples are:
1.
The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2.
3.
Poor fuel quality or water in the fuel.
The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheckEngine/ServiceEngineSoon light should turn off.
(A driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheckEngine/ServiceEngineSoon light remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If your
indicator is on, refer to the
description in theWarninglightsandchimes section of the
InstrumentCluster chapter. Your vehicle may not pass the I/M test with
the
indicator on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a“not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•
•
First, at least 10 minutes of driving on an expressway or highway.
Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
187
| Categories | Ford Manuals, Ford Taurus Manuals |
|---|---|
| Model Year | 2003 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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