Hyundai Santa Fe Check Engine Light Codes

Check engine light codes can cause a lot of stress and confusion, especially for Hyundai Santa Fe car owners. It’s hard to diagnose the problem and know what to do next without understanding what the codes mean. This guide will help you understand the check engine light codes in your Hyundai Santa Fe car and give you the knowledge you need to take action.

Table of Contents

1: Understanding Check Engine Light Codes in Hyundai Santa Fe Cars:

Firstly, it’s essential to understand how to read codes from the On-Board Diagnostics (OBD) system. Every vehicle has a computer that keeps track of all the components in the car. The OBD is a tool that reads these codes and relays the information to you through the check engine light. To read the codes, you will need an OBD reader, which can be purchased from any auto parts store. Once you have the OBD reader, plug it into the car’s diagnostic port, usually located under the steering wheel, and turn on the ignition. The OBD reader will display the codes, which you can then interpret.

1: Differentiating Between OBD-II and CAN Bus Diagnostic Protocols:

Secondly, you need to differentiate between OBD-II and CAN Bus Diagnostic Protocols. OBD-II is the standard diagnostic protocol used by all cars made after 1996. It provides common codes for the most common problems found in cars. CAN Bus, on the other hand, is a newer protocol that provides more detailed codes for specific problems found in modern cars. Knowing what diagnostic protocol your car uses is essential in understanding the check engine light codes it’s giving you.

2: Common Check Engine Light Codes for Hyundai Santa Fe Cars:

Below are the common Hyundai Santa Fe check engine light codes:

2.1: Mass Air Flow and Intake System:

P0101 – Mass Air Flow Circuit Range/Performance issue

P0102 – Mass Air Flow Circuit Low Input
P0103 – Mass Air Flow Circuit High Input
P0106 – Manifold Absolute Issue/Barometric Pressure Circuit Range/Performance Problem

P0107 – Barometric Pressure Circuit Low Input
P0108 -Barometric Pressure Circuit High Input
P0113 – Intake Air Temperature Circuit High Input

P0118 – Engine Coolant Temperature Circuit High Input

2.2: Throttle and Pedal Position Sensors:

P0122 – Throttle/Pedal Position Sensor A Circuit Low Input
P0123 – Throttle/Pedal Position Sensor A Circuit High Input

2.3: Engine Temperature and Cooling:

P0128 – Coolant Thermostat

2.4: Oxygen Sensors (Bank 1):

P0130 – O2 Sensor Circuit Malfunction
P0131 – O2 Sensor Circuit Low Voltage

P0132 – O2 Sensor Circuit High Voltage
P0133 – O2 Sensor Circuit Slow Response
P0134 – O2 Sensor Circuit No Activity Detected

P0135 – O2 Sensor Heater Circuit Malfunction
P0136 – O2 Sensor Circuit Malfunction
P0137 – O2 Sensor Circuit Low Voltage

P0138 – O2 Sensor Circuit High Voltage
P0139 – O2 Sensor Circuit Slow Response
P0140 – O2 Sensor Circuit No Activity Detected

P0141 – O2 Sensor Heater Circuit Malfunction

2.5: Fuel System (Bank 1 and Bank 2):

P0171 – System Too Lean (Bank 1)
P0172 – System Too Rich (Bank 1)

P0174 – System Too Lean (Bank 2)
P0175 – System Too Rich (Bank 2)
P0181 – Fuel Temperature Sensor A Circuit Range/Performance Problem

2.6: Fuel Injection System (Cylinders):

P0201 – Injector Circuit Malfunction – Cylinder 1
P0202 – Injector Circuit Malfunction – Cylinder 2
P0203 – Injector Circuit Malfunction – Cylinder 3

P0204 – Injector Circuit Malfunction – Cylinder 4
P0205 – Injector Circuit Malfunction – Cylinder 5
P0206 – Injector Circuit Malfunction – Cylinder 6

2.7: Misfire Detection (Cylinders):

P0300 – Random/Multiple Cylinder Misfire Detected
P0301 – Cylinder 1 Misfire Detected
P0302 – Cylinder 2 Misfire Detected

P0303 – Cylinder 3 Misfire Detected
P0304 – Cylinder 4 Misfire Detected
P0305 – Cylinder 5 Misfire Detected

P0306 – Cylinder 6 Misfire Detected
P0307 – Cylinder 7 Misfire Detected
P0308 – Cylinder 8 Misfire Detected

2.8: Crankshaft and Camshaft Position Sensors:

P0335 – Crankshaft Position Sensor A Circuit Malfunction
P0340 – Camshaft Position Sensor Circuit Malfunction

2.9: Exhaust Gas Recirculation (EGR) System:

P0400 – Exhaust Gas Recirculation Flow Malfunction

P0401 – Exhaust Gas Recirculation Flow Insufficient Detected

2.10: Catalytic Converter:

P0420 – Catalyst System Efficiency Below Threshold (B1)
P0430 – Catalyst System Efficiency Below Threshold (B2)

2.11: Evaporative Emission Control System (EVAP):

P0440 – Indicates a problem with your car’s emissions control system, specifically related to gasoline vapors.
P0441 – Indicate trouble code signals that there’s a problem with how your car’s emissions control system manages the flow of gasoline vapor.
P0442 – Indicate trouble code means that your car’s emissions control system has detected a leak in the system responsible for handling gasoline vapors.

P0443 – Indicates a problem with the circuitry of the control valve in your car’s emissions control system.
P0455 – Evaporative Emission Control System Leak Detected

2.12: Idle Control and Power Steering:

P0507 – Idle Air Control System RPM Higher than Expected

P0550 – Power Steering Pressure Sensor Circuit Malfunction

2.13: Internal Control Module and Communication Errors:

P0562 – System Voltage Low
P0600 – Serial Communication Link Malfunction

P0601 – Indicate there’s an error in the memory of your car’s internal control module.
P0602 – Indicate there’s an error in the programming of one of your car’s control modules.
P0603 – Indicates an error in the keep-alive memory of your car’s internal control module.

2.14: Transmission Control:

P0700 – Transmission Control System (MIL Request)
P0740 – Torque Converter Clutch Solenoid Circuit Malfunction
P0741 – Torque Converter Clutch Solenoid Performance/Stuck Off

P0743 – Torque Converter Clutch Solenoid Circuit Electrical
P0773 – Shift Solenoid “E” Electrical
P0780 – Shift Malfunction

2.15: Fuel Trim Adaptation (Bank 1 and Bank 2):

P1100 – Mass Air Flow Sensor Circuit Intermittent High Voltage
P1101 – Mass Air Flow Sensor Circuit Intermittent Low Voltage
P1128 – Long Term Fuel Trim B1 System Too Lean

P1129 – Long Term Fuel Trim B1 System Too Rich
P1130 – Long Term Fuel Trim B2 System Too Lean
P1131 – Long Term Fuel Trim B2 System Too Rich

P1150 – Fuel Trim Adaptation Additive B1 Malfunction
P1151 – Fuel Trim Adaptation Additive B1 too Lean
P1152 – Fuel Trim Adaptation Additive B1 too Rich

2.16: Air/Fuel Ratio Sensors (Bank 1):

P1155 -Fuel Ratio Sensor Heater Circuit (Bank 1, Sensor 1) Malfunction
P1166 – Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Heater System

2.17: Fuel System (Acceleration):

P1171 – Fuel System Lean During Acceleration (Bank 1)

P1174 – Fuel Trim Adaptation Additive B1 System Too Lean

3: What to do When You Receive a Check Engine Light Code on Your Santa Fe?

If you receive a check engine light code on your Santa Fe, don’t panic. The first thing you need to do is to check the gas cap and make sure it’s tight. Loose or damaged gas caps are a common cause of checking engine light codes. If that doesn’t solve the problem, check your car owner’s manual or go online to find information on the specific code you received. This will give you an idea of what to do next. However, it’s important to note that some codes are more severe than others and require professional attention.

4: Conclusion:

Understanding the check engine light codes in your Hyundai Santa Fe car is essential in keeping your vehicle in top shape. Knowing what the problem is and how to fix it can save you time, money, and stress in the long run. If you’re unsure or feel uncomfortable handling the problem yourself, it’s always best to seek professional help. Remember, a warning light is your car’s way of telling you that something needs attention, don’t ignore it.