Ultimate Guide to Eagle OBD-II Trouble Codes & Diagnostic Help

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David Lawrence

When you notice your Eagle vehicle’s “check engine” light flashing, you’re likely wondering what’s going on under the hood. The key to deciphering the mystery lies in the Eagle OBD/OBD2 codes, a set of diagnostic trouble codes that pinpoint specific issues with your car’s components.

These five-digit codes are categorized into four primary subsets, and understanding them can help you identify problems, from engine misfires to transmission issues. But what do these codes really mean, and how can you use them to get your vehicle back on the road?

Eagle Obd Obd2 Codes

Understanding OBD-II Codes

When you’re faced with a mysterious issue in your vehicle, understanding OBD-II codes is essential to identifying the problem and finding a solution.

OBD-II codes, which are part of your vehicle’s self-diagnostic system, provide specific information about component issues through Diagnostic Trouble Codes (DTC).

The codes are five-digit numbers with four subsets: powertrain, network and integration, body, and chassis.

P codes, which deal with the powertrain system, are the largest category and can be further broken down by numeric total, such as P0100-P0199 for fuel and air metering, fuel mileage, and emission systems.

Understanding these codes can help you diagnose and repair issues, including transmission problems, and even check for safety recalls.

Code Categories and Definitions

Numerous OBD-II codes are categorized into four primary subsets, each with its own distinct set of codes and definitions.

You’ll find that these subsets cover various aspects of your vehicle’s systems.

  • P codes, related to the powertrain system, include subsets like fuel and air metering (P0100-P0199), fuel injector circuit issues (P0200-P0299), and engine misfiring issues (P0300-P0399).
  • B codes and C codes deal with body and accessories, and chassis and accessories, respectively.
  • U codes, the smallest category, handle network and integration issues.

Each OBD-II code is a five-digit code, with the first number indicating if the code is manufacturer-specific or generic, and the last three numbers providing specific information on the troubled vehicle system or circuit.

This categorization helps you understand Diagnostic Trouble Codes and identify the root cause of the issue in your vehicle system.

Searching and Resolving Issues

You’ve accessed the OBD-II code, and now it’s time to dig deeper to resolve the issue.

To get started, enter your vehicle’s make and diagnostic trouble code to retrieve code descriptions and related information.

Use an OBD2 scanner for accurate code diagnosis and examine ASE-certified fix advice for diagnostic trouble codes.

Search for codes using the SEARCH button, and break them down by numeric total after the P for more specific information on the troubled vehicle system or circuit.

P codes deal with the powertrain system, including the engine, transmission, and drivetrain accessories. They can be subdivided into subsets for issues like fuel and air metering, fuel injector circuit issues, and engine misfiring.

Remember to check for safety recalls using your vehicle’s VIN or license plate number. Recall repairs are free when performed at a local dealer.

Most Common Eagle OBD-II Trouble Codes

CodeDescription
P1100O2 Sensor Heater Circuit Bank 1 Sensor 1
P1101O2 Sensor Heater Circuit Bank 1 Sensor 2
P1102O2 Sensor Heater Circuit Bank 2 Sensor 1
P1103O2 Sensor Heater Circuit Bank 2 Sensor 2
P1110Open Loop – Insufficient Engine Temperature
P1111Oxygen Sensor Bank 1 Sensor 1 Signal Stuck Rich
P1112Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Rich
P1113Oxygen Sensor Bank 2 Sensor 1 Signal Stuck Rich
P1114Oxygen Sensor Bank 2 Sensor 2 Signal Stuck Rich
P1115Oxygen Sensor Bank 1 Sensor 1 Signal Stuck Lean
P1116Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Lean
P1117Oxygen Sensor Bank 2 Sensor 1 Signal Stuck Lean
P1118Oxygen Sensor Bank 2 Sensor 2 Signal Stuck Lean
P1120Throttle Position Sensor Out Of Range
P1121Throttle Position Sensor Signal Voltage Low
P1122Throttle Position Sensor Signal Voltage High
P1130Lack Of HO2S Switch – Adaptive Fuel At Limit Bank 1
P1131Lack Of HO2S Switch – Sensor Indicates Lean Bank 1
P1132Lack Of HO2S Switch – Sensor Indicates Rich Bank 1
P1133HO2S Insufficient Switching Bank 1 Sensor 1
P1134HO2S Transition Time Ratio Bank 1 Sensor 1
P1135HO2S Transition Time Ratio Bank 1 Sensor 2
P1150Lack Of HO2S Switch – Adaptive Fuel At Limit Bank 2
P1151Lack Of HO2S Switch – Sensor Indicates Lean Bank 2
P1152Lack Of HO2S Switch – Sensor Indicates Rich Bank 2
P1153HO2S Insufficient Switching Bank 2 Sensor 1
P1154HO2S Transition Time Ratio Bank 2 Sensor 1
P1155HO2S Transition Time Ratio Bank 2 Sensor 2
P1170Fuel System Lean During Acceleration
P1171Fuel System Rich During Acceleration
P1172Fuel System Lean During Deceleration
P1173Fuel System Rich During Deceleration
P1195EGR Flow Insufficient Detected
P1196EGR Flow Excessive Detected
P1197EGR Temperature Sensor Circuit Low Input
P1198EGR Temperature Sensor Circuit High Input
P1199Fuel Level Sensor Circuit Fault
P1200Injector Circuit Open – Multiple Cylinders
P1201Injector Circuit Open – Cylinder 1
P1202Injector Circuit Open – Cylinder 2
P1203Injector Circuit Open – Cylinder 3
P1204Injector Circuit Open – Cylinder 4
P1205Injector Circuit Open – Cylinder 5
P1206Injector Circuit Open – Cylinder 6
P1280Injection Pump Malfunction
P1281Engine Is Cold Too Long
P1282Fuel Pump Relay Circuit
P1283Idle Learn Procedure Not Completed
P1284Fuel Injection Pump Mechanical Failure
P1285Boost Pressure Not Detected
P1286Fuel Injection Pump Control Error
P1287Turbocharger Underboost Condition
P1288Turbocharger Overboost Condition
P1289Turbocharger Diagnostic Module Input
P1290CNG Pressure Sensor Voltage Too Low/High
P1291No Temperature Rise Seen In Closed Loop Fuel Control
P1292CNG Pressure Drop Detected
P1293CNG Pressure Sensor Voltage Too High
P1294Target Idle Not Reached
P1295No 5 Volts To TP Sensor
P1296No 5 Volts To MAP Sensor
P1297No Change In MAP From Start To Run
P1298Lean Operation At Wide Open Throttle
P1299Cylinder Head Temperature Sensor Circuit Malfunction
P1300Misfire Detected – No Fuel Metered
P1391Intermittent Loss Of CMP Or CKP
P1398Misfire Detection Circuit Malfunction
P1399Wait To Start Lamp Circuit Expected Low
P1400Manifold Differential Pressure Sensor Circuit
P1401EGR Valve Position Sensor Circuit
P1402EGR Valve Position Feedback Circuit
P1403No EGR Flow Detected
P1404EGR Valve Pintle Position Circuit
P1405DPF Differential Pressure Sensor Circuit Low
P1406DPF Differential Pressure Sensor Circuit High
P1407EGR Valve Temperature Sensor Circuit
P1408EGR Flow Out Of Self Test Range
P1409EGR Vacuum System Leak
P1486Evap Canister Close Valve Circuit
P1487Evap Canister Close Valve Performance
P1488Evap Canister Close Valve Open
P1489Evap Canister Close Valve Shorted
P1490Evap Canister Vent Valve Circuit
P1491Evap Canister Vent Valve Performance
P1492Evap Canister Vent Valve Open
P1493Evap Canister Vent Valve Shorted
P1494Evap System Leak Detection Pump Pressure Sensor Circuit
P1495Evap System Leak Detection Pump Pressure Sensor Range/Performance
P1496Evap System Leak Detection Pump Pressure Sensor Low
P1497Evap System Leak Detection Pump Pressure Sensor High
P1498Evap System Leak Detection Pump Switch Circuit
P1499Evap System Leak Detection Pump Switch Stuck
P1500Vehicle Speed Sensor Intermittent
P1501Vehicle Speed Sensor Range/Performance
P1502Vehicle Speed Sensor Circuit Low Input
P1503Vehicle Speed Sensor Circuit High Input
P1504Idle Air Control System RPM Higher Than Expected
P1505Idle Air Control System RPM Lower Than Expected
P1506Idle Air Control Overspeed Error
P1507Idle Air Control Underspeed Error
P1508Idle Control System Circuit Open
P1509Idle Control System Circuit Shorted
P1510Idle Signal Circuit Malfunction
P1520Electric Cooling Fan Relay Circuit
P1521Electric Cooling Fan Relay Circuit Performance
P1522Electric Cooling Fan Relay Circuit Open
P1523Electric Cooling Fan Relay Circuit Shorted
P1524Electric Cooling Fan Relay #2 Circuit
P1525Electric Cooling Fan Relay #2 Circuit Performance
P1526Electric Cooling Fan Relay #2 Circuit Open
P1527Electric Cooling Fan Relay #2 Circuit Shorted
P1528Cooling Fan PWM Control Circuit
P1529Cooling Fan PWM Control Circuit Performance
P1530A/C Clutch Circuit Malfunction
P1531A/C Clutch Circuit Performance
P1532A/C Clutch Circuit Open
P1533A/C Clutch Circuit Shorted
P1534A/C Compressor Lock Sensor Circuit
P1535A/C Evaporator Temperature Sensor Circuit
P1536A/C Evaporator Temperature Sensor Range/Performance
P1537A/C Evaporator Temperature Sensor Circuit Low
P1538A/C Evaporator Temperature Sensor Circuit High
P1539Power Steering Pressure Switch Circuit
P1540Air Conditioning Pressure Sensor Circuit
P1541Air Conditioning Pressure Sensor Performance
P1542Air Conditioning Pressure Sensor Low
P1543Air Conditioning Pressure Sensor High
P1544EGR Position Sensor Circuit Intermittent
P1545EGR Position Sensor Circuit
P1546EGR Position Sensor Circuit Range/Performance
P1547EGR Position Sensor Circuit Low
P1548EGR Position Sensor Circuit High
P1549EGR Vacuum Solenoid Circuit
P1550PSPS Out Of Self Test Range
P1551Barometric Pressure Out Of Self Test Range
P1552Barometric Pressure Sensor Circuit
P1553Barometric Pressure Sensor Circuit Range/Performance
P1554Barometric Pressure Sensor Circuit Low
P1555Barometric Pressure Sensor Circuit High
P1556Brake Booster Pressure Sensor Circuit
P1557Brake Booster Pressure Sensor Circuit Range/Performance
P1558Brake Booster Pressure Sensor Circuit Low
P1559Brake Booster Pressure Sensor Circuit High
P1560Maximum Governed Speed Fault
P1561Quantity Adjuster Feedback Signal
P1562Actuator Supply Voltage “A” Circuit Low
P1563Actuator Supply Voltage “A” Circuit High
P1564Actuator Supply Voltage “B” Circuit Low
P1565Actuator Supply Voltage “B” Circuit High
P1566Tach Output Circuit
P1567Tach Output Circuit Performance
P1568Tach Output Circuit Low
P1569Tach Output Circuit High
P1570Contr. Module Lock Detected – Engine Inop
P1571Brake Switch “A”/”B” Correlation
P1572Brake Pedal Switch Circuit Malfunction
P1573Throttle Position Not Available
P1574Throttle Position Sensor Disagreement btwn Sensors
P1575Pedal Position Not Available
P1576Pedal Position Sensor Disagreement btwn Sensors
P1577Pedal Position Sensor/Switch “D” Circuit
P1578Pedal Position Sensor/Switch “D” Circuit Range/Performance
P1579Pedal Position Sensor/Switch “D” Circuit Low
P1580Pedal Position Sensor/Switch “D” Circuit High
P1581Throttle Inlet Control System
P1582Idle Adapt-At Limit
P1583Cruise Control Disabled
P1584TPM Detection Mode Active
P1585Throttle Control Unit Malfunction
P1586Throttle Monitor PCM Disagreement
P1587Throttle Monitor 2 Malfunction
P1588Throttle Monitor 3 Malfunction
P1589TCM Adaptive Learning At Limit
P1590Neutral Safety Switch Malfunction
P1591TCM Power Relay Malfunction
P1592CAN Communication Error
P1593TCM CAN Communication Error
P1594Alternator Load Input Failed High
P1595Speed Control Inoperative
P1596Speed Control Auxiliary Input Short To Ground
P1597Speed Control Auxiliary Input Open Circuit
P1598A/C Pressure Sensor Voltage Too Low
P1599A/C Pressure Sensor Voltage Too High
P1600Loss Of KAM Power
P1601ECM/TCM Serial Communication Error
P1602Immobilizer/ECM Communication Error
P1603EEPROM Malfunction
P1604Code Word Unregestered
P1605Rough Road Hardware Not Present
P1606Rough Road Sensor Malfunction
About the author
David Lawrence
David grew up among mechanics and off-road enthusiasts, gaining deep knowledge in car mods, off-roading techniques, and automotive engineering, making him a trusted 4x4 expert.

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