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.
Master Switch
Remove master switch from vehicle. Measure resistance between specified terminals while operating switch. See MASTER SWITCH TESTING table. See Fig 1 . Replace switch if resistance between specified terminals is greater than 5 ohms. DO NOT check resistance between terminals not specified.
| Switch Position | Continuity Between Terminals | |
|---|---|---|
| Neutral | C1-1, C1-3, C1-4, C2-4, C2-5, C2-6 & C2-7 | |
| Lock-Out | C1-2 & C2-3 | |
| Left Front | ||
| Up | C1-2 & C1-7; C1-1 & C1-6 | |
| Down | C1-2 & C1-6; C1-1 & C1-7 | |
| Right Front | ||
| Up | C1-2 & C1-3; C1-1 & C1-4 | |
| Down | C1-2 & C1-4; C1-1 & C1-3 | |
| Left Rear | ||
| Up | C1-2 & C2-6; C1-1 & C2-7 | |
| Down | C1-2 & C2-7; C1-1 & C2-6 | |
| Right Rear | ||
| Up | C1-2 & C2-4; C1-1 & C2-5 | |
| Down | C1-2 & C2-5; C1-1 & C2-4 | |
Use the Manual With the Right Hardware
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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.
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