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 PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TESTS W/CODES - EECCODE-TO-TEST MENUNOTES
1991 Mercury Tracer Base, 4D Sedan, Automatic
Code-To-Test Menu: Notes
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Notes
CODE-TO-TEST REFERENCE CHART
| Service Code | (1) Perform Circuit Test | ||
|---|---|---|---|
| 01 | IDM | ||
| 02 | CPS | ||
| 03 | CID1 | ||
| 04 | CID2 | ||
| 05 | KCU | ||
| 06 | VSS | ||
| 08 | VAF | ||
| 09 | ECT | ||
| 10 | VAT | ||
| 12 | TP | ||
| 14 | BP | ||
| 15 | EGO | ||
| 16 | EVP | ||
| 17 | EGO | ||
| 25 | SCG | ||
| 26 | SCG | ||
| 28 | SCG | ||
| 29 | SCG | ||
| 34 | SCG | ||
| 41 | SCG | ||
| 42 | SCG | ||
|
|||
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.