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.
Component testing procedure
2009 Ford Cutaway E250, 4R70WSECTION Component testing procedure
COMPONENT TESTING PROCEDURE REFERENCE
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move key to these positions | A good switch will indicate |
|---|---|---|---|
| Run/Accessory power circuit | 7 and 3 | Accessory | Closed circuit |
| Lock/Off/Run/Start | Open circuit | ||
| 9 and 3 | Accessory/Lock/Off | Open circuit | |
| Run | Closed circuit | ||
| Start | Open circuit | ||
| Run power circuit | 2 and 8 12 and 13 |
Accessory/Lock/Off | Open circuit |
| Run | Closed circuit | ||
| Start | Open circuit | ||
| Run/Start power circuit | 7 and 1 | Accessory/Lock/Off | Open circuit |
| Run/Start | Closed circuit | ||
| Start power circuit | 2 and 5 | Accessory/Lock/Off/Run | Open circuit |
| Start | Closed circuit |
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.