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 DIAGNOSISBRAKESTRACTION CONTROLELECTRONIC STABILITY CONTROL (ESC) 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 C1200 | Wheel Speed Sensor Front-LH Open/Short |
| DTC C1201 | Wheel Speed Sensor Front-LH Range/Performance/Intermittent |
| DTC C1202 | Wheel Speed Sensor Front-LH Invalid/no Signal |
| DTC C1203 | Wheel Speed Sensor Front-RH Open/Short |
| DTC C1204 | Wheel Speed Sensor Front-RH Range/Performance/Intermittent |
| DTC C1205 | Wheel Speed Sensor Front-RH Invalid/no Signal |
| DTC C1206 | Wheel Speed Sensor Rear-LH Open/Short |
| DTC C1207 | Wheel Speed Sensor Rear-LH Range/Performance/Intermittent |
| DTC C1208 | Wheel Speed Sensor Rear-LH Invalid/no Signal |
| DTC C1209 | Wheel Speed Sensor Rear-RH Open/Short |
| DTC C1210 | Wheel Speed Sensor Rear-RH Range/Performance/Intermittent |
| DTC C1211 | Wheel Speed Sensor Rear-RH Invalid/no Signal |
| DTC C1235 | Primary Pressure Sensor-Electrical |
| DTC C1237 | Primary Pressure Sensor-Signal |
| DTC C1260 | Steering Angle Sensor Circuit-Signal |
| DTC C1261 | Steering Angle Sensor Not Calibrated |
| DTC C1274 | Longitudinal G Sensor-Electrical |
| DTC C1275 | Longitudinal G Sensor Range/Performance error |
| DTC C1282 | Yaw Rate & Lateral G Sensor-Electrical |
| DTC C1283 | Yaw Rate & Lateral G Sensor-Signal |
| DTC C1353 | Pressure sensor (Wh1) - electrical |
| DTC C1354 | Pressure sensor (Wh1) - other |
| DTC C1355 | Pressure sensor (Wh2) - electrical |
| DTC C1356 | Pressure sensor (Wh2) - other |
| DTC C1357 | SCC or DBF deceleration plausibility error |
| DTC C1358 | AVH not Available due to EPB in Emergency Release |
| DTC C1359 | SCC Control Unit Error |
| DTC C1503 | TCS/ESC(ESP) Switch error |
| DTC C1513 | Brake switch error |
| DTC C1604 | ECU Hardware Error |
| DTC C1605 | CAN 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 Communication Bus Off |
| DTC C1623 | CAN Time-out Steering Angle Sensor |
| DTC C1626 | Implausible Control |
| DTC C1638 | CAN time-out SCC |
| DTC C1648 | CAN signal error ECM for SCC (Check ECM) |
| DTC C1649 | CAN time-out ECM for SCC |
| DTC C1650 | CAN signal error SCC |
| DTC C1651 | CAN time-out EPB |
| DTC C1652 | CAN signal error EPB |
| DTC C1653 | CAN time-out Cluster for SCC |
| DTC C1654 | CAN time-out Cluster for EPB |
| DTC C1655 | CAN signal error TCU for EPB |
| DTC C1664 | CAN signal error SCC for VSM |
| DTC C1702 | Variant Coding Error |
| DTC C2112 | Valve Relay Error |
| DTC C2227 | Excessive Temperature Of Brake Disc |
| DTC C2228 | CAN signal error TCM for SCC |
| DTC C2308 | Front-LH Valve error (Inlet Valve) |
| DTC C2312 | Front-LH Valve error (Outlet Valve) |
| DTC C2316 | Front-RH Valve error (Inlet Valve) |
| DTC C2320 | Front-RH Valve error (Outlet Valve) |
| DTC C2324 | Rear-LH Valve error (Inlet Valve) |
| DTC C2328 | Rear-LH Valve error (Outlet Valve) |
| DTC C2332 | Rear-RH Valve error (Inlet Valve) |
| DTC C2336 | Rear-RH Valve error (Outlet Valve) |
| DTC C2366 | TC Valve Primary (USV1) Error |
| DTC C2370 | TC Valve Secondary (USV2) Error |
| DTC C2372 | Electronic Shuttle Valve Primary (HSV1) Error |
| DTC C2374 | Electronic Shuttle Valve Secondary (HSV2) Error |
| DTC C2380 | ABS/TCS/ESP valve error |
| DTC C2402 | Motor Failure |
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.