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.
2005 Mazda B3000 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition Switch Inspection
CIRCUIT AND TERMINAL REFERENCE
| Circuit to Test | Connect Self-Powered Test Light or Ohmmeter to Terminals | Move Key to These Positions | A Good Switch Will Indicate |
|---|---|---|---|
| Run Power Circuit | B1 and A1 B2 and A2 B4 and A4 | Off/Lock | Open Circuit |
| Accessory | Open Circuit | ||
| Run | Closed Circuit | ||
| Start | Open Circuit | ||
| Run/Start Power Circuit | B5 and 11 | Off/Lock | Open Circuit |
| Accessory | Open Circuit | ||
| Run | Closed Circuit | ||
| Start | Closed Circuit | ||
| "Ace" Power Circuit | B5 and 11 | Off/Lock | Open Circuit |
| Accessory | Closed Circuit | ||
| Run | Open Circuit | ||
| Start | Open Circuit | ||
| Start Power Circuit | B4 and STA | Off/Lock | Open Circuit |
| Accessory | Open Circuit | ||
| Run | Open Circuit | ||
| Start | Closed Circuit |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.