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 MANUALSCHRYSLER2004CROSSFIRE STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - ELECTRICAL DIAGNOSTICSDIAGNOSIS AND TESTINGDTC P0412: SECONDARY AIR INJECTION SWITCHOVER SOLENOID CIRCUITDIAGNOSTIC TEST3. CHECKING THE FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT AT THE AIR PUMP SWITCHOVER SOLENOID
2004 Chrysler Crossfire Standard
3. Checking The Fused Engine Control Relay Output Circuit At The Air Pump Switchover Solenoid
2004 Chrysler Crossfire StandardSECTION 3. Checking The Fused Engine Control Relay Output Circuit At The Air Pump Switchover Solenoid
With the ignition on.
Measure the voltage of the Fused Engine Control Relay Output circuit at the Air Pump Switchover Solenoid harness connector.
Is the voltage above 10 volts?
- Yes >> Go To 4
- No >> Repair the Fused Engine Control Relay Output circuit for an open.
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.