The 1986 Ford Taurus is not OBD2 compliant. OBD2, or On-Board Diagnostics II, became a mandatory standard for vehicles sold in the United States starting in the 1996 model year. Therefore, any vehicle manufactured before 1996, including the 1986 Taurus, will not have an OBD2 port or utilize the standardized OBD2 diagnostic trouble codes (DTCs).
Understanding OBD Systems and the 86 Taurus
While the 1986 Taurus doesn’t use OBD2, it likely has some form of an earlier onboard diagnostic system. Ford began implementing rudimentary OBD systems in some of its models as early as the mid-1980s. However, these systems were not standardized across manufacturers and often varied significantly between different models and even model years.
These early OBD systems typically used manufacturer-specific connectors and codes, making diagnosing issues more challenging than with the standardized OBD2 system. They might utilize a Self-Test Input connector located under the dashboard or in the engine compartment.
How to Diagnose Issues in a 1986 Ford Taurus
Since the 1986 Taurus doesn’t have OBD2, you’ll need to use different methods for diagnostics:
- Check Engine Light: If illuminated, this indicates a problem. You may be able to retrieve codes by using a jumper wire to short specific pins on the Self-Test Input connector. Refer to your vehicle’s repair manual for the correct procedure. This will trigger a flashing sequence on the check engine light, which corresponds to specific trouble codes.
- Consult the Repair Manual: The vehicle’s repair manual is invaluable for understanding the specific diagnostic system used in your 1986 Taurus. It will contain information about connector locations, wiring diagrams, and code definitions.
- Use a Code Reader for Early Ford Systems: While a standard OBD2 scanner won’t work, there are specialized code readers designed for early Ford OBD systems. These readers can connect to the manufacturer-specific connector and retrieve diagnostic trouble codes.
- Seek Professional Help: If you’re not comfortable working on your vehicle’s electrical system or have difficulty interpreting the codes, it’s best to consult a qualified mechanic experienced with older Ford models.
Conclusion: Finding the Right Diagnostic Approach for Your 86 Taurus
Although the 1986 Ford Taurus predates the OBD2 standard, understanding the available diagnostic methods is crucial for maintaining and troubleshooting your vehicle. Utilizing resources like the repair manual and potentially a specialized code reader will allow you to effectively address any issues that arise. Remember to consult a mechanic if you require professional assistance.
