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.
2004 Mazda MPV LXFACTORY OEM SERVICE PROCEDURE
Continuity Inspection
- Inspect the following if the power steering is inoperative (See
POWER STEERING FLUID INSPECTION
.):
- Power steering fluid level
- Power steering fluid leakage
- Power steering fluid pressure
- Disconnect the PSP switch connector.
- Start the engine.
- Inspect for continuity between the PSP switch terminal and GND using an ohmmeter.
- If not as specified, replace the PSP switch.
- If the PSP switch is okay, but PID value or PCM terminal 31 voltage are out of specification, perform Circuit Open/Short Inspection .
SpecificationÂ
Factory Service Tools
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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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