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 MANUALSFORD1987THUNDERBIRD BASE, 3.8 3REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEM3.8L CFI EEC IV TESTINGQUICK TESTCODE/TEST MENU (KOER)
1987 Ford Thunderbird Base, 3.8 3
Code/Test Menu (KOER)
1987 Ford Thunderbird Base, 3.8 3SECTION Code/Test Menu (KOER)
KEY ON/ENGINE RUNNING CIRCUIT TEST MENU
| Code No. | Go To: Circuit Test No. (Step No.) | ||
|---|---|---|---|
| 12 | AA (16) | ||
| 13 | AA (19) | ||
| 16 | AA (19) | ||
| 21 | G (1) | ||
| 22 | H (7) | ||
| 23 | J (1) | ||
| 24 | E (1) | ||
| 31 | F (1) | ||
| 32, 33, 34 | F (8) | ||
| 35 | F (20) | ||
| 41 | T (7) | ||
| 42 | T (14) | ||
| 44, 45, 46 | X (1) | ||
| 55 | T (1) | ||
| 58 | AA (12) | ||
| 72 | H (9) | ||
| 91 | T (7) | ||
| 92 | T (14) | ||
| 94 | X (1) | ||
| 99 (1) | N/A | ||
|
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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.