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 DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 3)
2011 Hyundai Equus Signature
Engine Control System Diagnosis (1 Of 3)
2011 Hyundai Equus SignatureSECTION Engine Control System Diagnosis (1 Of 3)
- DTC Index
- DTC P0011: 'A' Camshaft Position-Timing Over-Advanced or System Performance (Bank 1)
- DTC P0014: 'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
- DTC P0016: Crankshaft Position-Camshaft Position Correlation (Bank 1 Sensor A)
- DTC P0017: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)
- DTC P0018: Crankshaft Position-Camshaft Position Correlation (Bank 2 Sensor A)
- DTC P0019: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
- DTC P0021: 'A' Camshaft Position-Timing Over-Advanced or System Performance (Bank 2)
- DTC P0024: 'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
- DTC P0030: HO2S Heater Control Circuit (Bank 1/Sensor 1)
- DTC P0031: HO2S Heater Control Circuit Low (Bank 1/Sensor 1)
- DTC P0032: HO2S Heater Control Circuit High (Bank 1/Sensor 1)
- DTC P0036: HO2S Heater Control Circuit (Bank 1/Sensor 2)
- DTC P0037: HO2S Heater Control Circuit Low (Bank 1/Sensor 2)
- DTC P0038: HO2S Heater Control Circuit High (Bank 1/Sensor 2)
- DTC P0050: HO2S Heater Control Circuit (Bank 2/Sensor 1)
- DTC P0051: HO2S Heater Control Circuit Low (Bank 2/Sensor 1)
- DTC P0052: HO2S Heater Control Circuit High (Bank 2/Sensor 1)
- DTC P0056: HO2S Heater Control Circuit (Bank 2/Sensor 2)
- DTC P0057: HO2S Heater Control Circuit Low (Bank 2/Sensor 2)
- DTC P0058: HO2S Heater Control Circuit High (Bank 2/Sensor 2)
- DTC P0075: Intake Valve Control Solenoid Circuit (Bank 1)
- DTC P0076: Intake Valve Control Solenoid Circuit-Low (Bank 1)
- DTC P0077: Intake Valve Control Solenoid Circuit-High (Bank 1)
- DTC P0078: Exhaust Valve Control Solenoid Circuit (Bank 1)
- DTC P0079: Exhaust Valve Control Solenoid Circuit Low (Bank 1)
- DTC P0080: Exhaust Valve Control Solenoid Circuit High (Bank 1)
- DTC P0081: Intake Valve Control Solenoid Circuit (Bank 2)
- DTC P0082: Intake Valve Control Solenoid Circuit-Low (Bank 2)
- DTC P0083: Intake Valve Control Solenoid Circuit-High (Bank 2)
- DTC P0084: Exhaust Valve Control Solenoid Circuit (Bank 2)
- DTC P0085: Exhaust Valve Control Solenoid Circuit Low (Bank 2)
- DTC P0086: Exhaust Valve Control Solenoid Circuit High (Bank 2)
- DTC P0101: Mass or Volume Air Flow 'A' Circuit Range/Performance
- DTC P0102: Mass or Volume Air Flow 'A' Circuit Low Input
- DTC P0103: Mass or Volume Air Flow 'A' Circuit High Input
- DTC P0111: Intake Air Temperature Sensor 1 Circuit Range/Performance
- DTC P0112: Intake Air Temperature Sensor 1 Circuit Low Input
- DTC P0113: Intake Air Temperature Sensor 1 Circuit High Input
- DTC P0116: Engine Coolant Temperature Circuit Range/Performance
- DTC P0117: Engine Coolant Temperature Circuit Low Input
- DTC P0118: Engine Coolant Temperature Circuit High Input
- DTC P0119: Engine Coolant Temperature Circuit Intermittent
- DTC P0121: Throttle Position Sensor 1 Signal Circuit Range/Performance
- DTC P0122: Throttle Position Sensor 1 Signal Circuit Low Input
- DTC P0123: Throttle Position Sensor 1 Signal Circuit High Input
- DTC P1028: Coolant Thermostat (Coolant Temperature below Thermostat Regulating Temperature)
- DTC P0130: O2 Sensor Circuit (Bank 1/Sensor 1)
- DTC P0131: O2 Sensor Circuit Low Voltage (Bank 1/Sensor 1)
- DTC P0132: O2 Sensor Circuit High Voltage (Bank 1/Sensor 1)
- DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1)
- DTC P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
- DTC P0136: O2 Sensor Circuit (Bank 1/Sensor 2)
- DTC P0137: O2 Sensor Circuit Low Voltage (Bank 1/Sensor 2)
- DTC P0138: O2 Sensor Circuit High Voltage (Bank 1/Sensor 2)
- DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2)
- DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2)
- DTC P0150: O2 Sensor Circuit (Bank 2/Sensor 1)
- DTC P0151: O2 Sensor Circuit Low Voltage (Bank 2/Sensor 1)
- DTC P0152: O2 Sensor Circuit High Voltage (Bank 2/Sensor 1)
- DTC P0153: O2 Sensor Circuit Slow Response (Bank 2/Sensor 1)
- DTC P0154: O2 Sensor Circuit No Activity Detected (Bank 2/Sensor 1)
- DTC P0156: O2 Sensor Circuit (Bank 2/Sensor 2)
- DTC P0157: O2 Sensor Circuit Low Voltage (Bank 2/Sensor 2)
- DTC P0158: O2 Sensor Circuit High Voltage (Bank 2/Sensor 2)
- DTC P0159: O2 Sensor Circuit Slow Response (Bank 2/Sensor 2)
- DTC P0160: O2 Sensor Circuit No Activity Detected (Bank 2/Sensor 2)
- DTC P0201: Injector Circuit/Open-Cylinder 1
- DTC P0202: Injector Circuit/Open-Cylinder 2
- DTC P0203: Injector Circuit/Open-Cylinder 3
- DTC P0204: Injector Circuit/Open-Cylinder 4
- DTC P0205: Injector Circuit/Open-Cylinder 5
- DTC P0206: Injector Circuit/Open-Cylinder 6
- DTC P0207: Injector Circuit/Open - Cylinder 7
- DTC P0208: Injector Circuit/Open - Cylinder 8
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.