Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Ford Taurus SHOFACTORY OEM SERVICE PROCEDURE
Test E: Gem Does Not Respond To Scan Tool
- Check GEM Connector
Turn ignition off. Disconnect Generic Electronic Module connector C236. See Figure . GEM is located behind fuse panel. Inspect connector C236 terminals. If connector terminals are okay, go to next step. Repair any damaged terminals. Restore all electrical connections and repeat DATA LINK DIAGNOSTICS to confirm repair. - Check Circuit No. 70 Between DLC & GEM
Measure resistance of circuit No. 70 (Light Blue/White wire) between DLC terminal No. 7 and C236, terminal No. 10. See Figure and Figure . If resistance is less than 5 ohms, replace GEM. Restore electrical connections and perform DATA LINK DIAGNOSTICS to confirm repair. If resistance is greater than 5 ohms, repair open Light Blue/White wire between DLC and GEM connector C236. Restore electrical connections and perform DATA LINK DIAGNOSTICS to confirm repair.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.