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 MANUALSHYUNDAI2013SANTA FE XL PREMIUMREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (3 OF 3)DTC P0685: ECM/PCM POWER RELAY CONTROL CIRCUIT/OPENGENERAL DESCRIPTION
2013 Hyundai Santa Fe XL Premium
DTC P0685: ECM/PCM Power Relay Control Circuit/Open: General Description
2013 Hyundai Santa Fe XL PremiumSECTION General Description
The PCM controls the ground path of the main relay control coil. The other side of the main relay coil is connected to fuse B+ (Battery Voltage).
RENDER: 1.0x
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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.