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 MANUALSHYUNDAI2011EQUUS SIGNATUREREPAIR AND DIAGNOSISBRAKESPARKING BRAKE SYSTEMELECTRIC PARKING BRAKE SYSTEM DIAGNOSISDIAGNOSTIC TROUBLE CODE INDEX
2011 Hyundai Equus Signature
Diagnostic Trouble Code Index
2011 Hyundai Equus SignatureSECTION Diagnostic Trouble Code Index
DIAGNOSTIC TROUBLE CODE DESCRIPTIONS
| DTC | Description |
|---|---|
| DTC C1101 | Battery Voltage High |
| DTC C1102 | Battery Voltage Low |
| DTC C1103 | Ignition Signal Failure |
| DTC C1241 | Force Sensor Failure |
| DTC C1242 | Force Sensor Not Calibrated |
| DTC C1262 | Temperature Sensor Failure |
| DTC C1270 | Temperature/Overload |
| DTC C1501 | Switch Failure |
| DTC C1604 | ECU Hardware Error |
| DTC C1611 | CAN Time-out ECM |
| DTC C1612 | CAN Time-out TCM |
| DTC C1613 | CAN signal error ECM (Check ECM) |
| DTC C1616 | CAN Bus off |
| DTC C1625 | CAN Time-out ABS/ESC(ESP) |
| DTC C1628 | CAN Timeout - Cluster |
| DTC C1642 | CAN signal error ESC(ESP) |
| DTC C1646 | CAN signal error TCU |
| DTC C1656 | CAN signal error Cluster |
| DTC C2202 | Latching Failure/Mechanics |
| DTC C2402 | Motor Electrical |
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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.