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.
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HOMESERVICE MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 1.9LRETRIEVING CODES
1991 Mercury Tracer Base, 4D Sedan, Automatic
Retrieving Codes
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Retrieving Codes
Service codes are retrieved from the EEC-IV system through the self-test connector. Various methods and test equipment may be used to access these codes. The following test equipment may be used:
- Analog Volt-Ohmmeter (VOM)
- "Scan" Tool
- STAR Series Tester
- In-Dash CHECK ENGINE or SERVICE ENGINE SOON Light
SELF-TEST CONNECTOR LOCATIONS
| Application | Location |
|---|---|
| Escort (1.9L) | Right rear of engine, near cowl. |
| Tracer (1.9L) | Left rear corner of engine compartment. |
RENDER: 1.0x
NO RELATED
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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.