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 MANUALSKIA2007RIO LX, STANDARDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSIMMOBILIZER CONTROL SYSTEMDTC P1694 EMS MESSAGE ERRORDTC DETECTING CONDITION

2007 Kia Rio LX, Standard

DTC P1694 Ems Message Error: DTC Detecting Condition

2007 Kia Rio LX, StandardSECTION DTC Detecting Condition

DTC DESCRIPTION POSSIBLE CAUSE

Item	Detecting Condition	Possible cause
Enable Condition	IG ON	Faulty ECM
Detecting factors	Request from Control unit is invalid
Detecting Window	End of ECM request message
Detecting Criteria	Protocol layer violation - Invalid request, Invalid check sum.)

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.