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

Code Description
P1100 O2 Sensor Heater Circuit Bank 1 Sensor 1
P1101 O2 Sensor Heater Circuit Bank 1 Sensor 2
P1102 O2 Sensor Heater Circuit Bank 2 Sensor 1
P1103 O2 Sensor Heater Circuit Bank 2 Sensor 2
P1110 Open Loop – Insufficient Engine Temperature
P1111 Oxygen Sensor Bank 1 Sensor 1 Signal Stuck Rich
P1112 Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Rich
P1113 Oxygen Sensor Bank 2 Sensor 1 Signal Stuck Rich
P1114 Oxygen Sensor Bank 2 Sensor 2 Signal Stuck Rich
P1115 Oxygen Sensor Bank 1 Sensor 1 Signal Stuck Lean
P1116 Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Lean
P1117 Oxygen Sensor Bank 2 Sensor 1 Signal Stuck Lean
P1118 Oxygen Sensor Bank 2 Sensor 2 Signal Stuck Lean
P1120 Throttle Position Sensor Out Of Range
P1121 Throttle Position Sensor Signal Voltage Low
P1122 Throttle Position Sensor Signal Voltage High
P1130 Lack Of HO2S Switch – Adaptive Fuel At Limit Bank 1
P1131 Lack Of HO2S Switch – Sensor Indicates Lean Bank 1
P1132 Lack Of HO2S Switch – Sensor Indicates Rich Bank 1
P1133 HO2S Insufficient Switching Bank 1 Sensor 1
P1134 HO2S Transition Time Ratio Bank 1 Sensor 1
P1135 HO2S Transition Time Ratio Bank 1 Sensor 2
P1150 Lack Of HO2S Switch – Adaptive Fuel At Limit Bank 2
P1151 Lack Of HO2S Switch – Sensor Indicates Lean Bank 2
P1152 Lack Of HO2S Switch – Sensor Indicates Rich Bank 2
P1153 HO2S Insufficient Switching Bank 2 Sensor 1
P1154 HO2S Transition Time Ratio Bank 2 Sensor 1
P1155 HO2S Transition Time Ratio Bank 2 Sensor 2
P1170 Fuel System Lean During Acceleration
P1171 Fuel System Rich During Acceleration
P1172 Fuel System Lean During Deceleration
P1173 Fuel System Rich During Deceleration
P1195 EGR Flow Insufficient Detected
P1196 EGR Flow Excessive Detected
P1197 EGR Temperature Sensor Circuit Low Input
P1198 EGR Temperature Sensor Circuit High Input
P1199 Fuel Level Sensor Circuit Fault
P1200 Injector Circuit Open – Multiple Cylinders
P1201 Injector Circuit Open – Cylinder 1
P1202 Injector Circuit Open – Cylinder 2
P1203 Injector Circuit Open – Cylinder 3
P1204 Injector Circuit Open – Cylinder 4
P1205 Injector Circuit Open – Cylinder 5
P1206 Injector Circuit Open – Cylinder 6
P1280 Injection Pump Malfunction
P1281 Engine Is Cold Too Long
P1282 Fuel Pump Relay Circuit
P1283 Idle Learn Procedure Not Completed
P1284 Fuel Injection Pump Mechanical Failure
P1285 Boost Pressure Not Detected
P1286 Fuel Injection Pump Control Error
P1287 Turbocharger Underboost Condition
P1288 Turbocharger Overboost Condition
P1289 Turbocharger Diagnostic Module Input
P1290 CNG Pressure Sensor Voltage Too Low/High
P1291 No Temperature Rise Seen In Closed Loop Fuel Control
P1292 CNG Pressure Drop Detected
P1293 CNG Pressure Sensor Voltage Too High
P1294 Target Idle Not Reached
P1295 No 5 Volts To TP Sensor
P1296 No 5 Volts To MAP Sensor
P1297 No Change In MAP From Start To Run
P1298 Lean Operation At Wide Open Throttle
P1299 Cylinder Head Temperature Sensor Circuit Malfunction
P1300 Misfire Detected – No Fuel Metered
P1391 Intermittent Loss Of CMP Or CKP
P1398 Misfire Detection Circuit Malfunction
P1399 Wait To Start Lamp Circuit Expected Low
P1400 Manifold Differential Pressure Sensor Circuit
P1401 EGR Valve Position Sensor Circuit
P1402 EGR Valve Position Feedback Circuit
P1403 No EGR Flow Detected
P1404 EGR Valve Pintle Position Circuit
P1405 DPF Differential Pressure Sensor Circuit Low
P1406 DPF Differential Pressure Sensor Circuit High
P1407 EGR Valve Temperature Sensor Circuit
P1408 EGR Flow Out Of Self Test Range
P1409 EGR Vacuum System Leak
P1486 Evap Canister Close Valve Circuit
P1487 Evap Canister Close Valve Performance
P1488 Evap Canister Close Valve Open
P1489 Evap Canister Close Valve Shorted
P1490 Evap Canister Vent Valve Circuit
P1491 Evap Canister Vent Valve Performance
P1492 Evap Canister Vent Valve Open
P1493 Evap Canister Vent Valve Shorted
P1494 Evap System Leak Detection Pump Pressure Sensor Circuit
P1495 Evap System Leak Detection Pump Pressure Sensor Range/Performance
P1496 Evap System Leak Detection Pump Pressure Sensor Low
P1497 Evap System Leak Detection Pump Pressure Sensor High
P1498 Evap System Leak Detection Pump Switch Circuit
P1499 Evap System Leak Detection Pump Switch Stuck
P1500 Vehicle Speed Sensor Intermittent
P1501 Vehicle Speed Sensor Range/Performance
P1502 Vehicle Speed Sensor Circuit Low Input
P1503 Vehicle Speed Sensor Circuit High Input
P1504 Idle Air Control System RPM Higher Than Expected
P1505 Idle Air Control System RPM Lower Than Expected
P1506 Idle Air Control Overspeed Error
P1507 Idle Air Control Underspeed Error
P1508 Idle Control System Circuit Open
P1509 Idle Control System Circuit Shorted
P1510 Idle Signal Circuit Malfunction
P1520 Electric Cooling Fan Relay Circuit
P1521 Electric Cooling Fan Relay Circuit Performance
P1522 Electric Cooling Fan Relay Circuit Open
P1523 Electric Cooling Fan Relay Circuit Shorted
P1524 Electric Cooling Fan Relay #2 Circuit
P1525 Electric Cooling Fan Relay #2 Circuit Performance
P1526 Electric Cooling Fan Relay #2 Circuit Open
P1527 Electric Cooling Fan Relay #2 Circuit Shorted
P1528 Cooling Fan PWM Control Circuit
P1529 Cooling Fan PWM Control Circuit Performance
P1530 A/C Clutch Circuit Malfunction
P1531 A/C Clutch Circuit Performance
P1532 A/C Clutch Circuit Open
P1533 A/C Clutch Circuit Shorted
P1534 A/C Compressor Lock Sensor Circuit
P1535 A/C Evaporator Temperature Sensor Circuit
P1536 A/C Evaporator Temperature Sensor Range/Performance
P1537 A/C Evaporator Temperature Sensor Circuit Low
P1538 A/C Evaporator Temperature Sensor Circuit High
P1539 Power Steering Pressure Switch Circuit
P1540 Air Conditioning Pressure Sensor Circuit
P1541 Air Conditioning Pressure Sensor Performance
P1542 Air Conditioning Pressure Sensor Low
P1543 Air Conditioning Pressure Sensor High
P1544 EGR Position Sensor Circuit Intermittent
P1545 EGR Position Sensor Circuit
P1546 EGR Position Sensor Circuit Range/Performance
P1547 EGR Position Sensor Circuit Low
P1548 EGR Position Sensor Circuit High
P1549 EGR Vacuum Solenoid Circuit
P1550 PSPS Out Of Self Test Range
P1551 Barometric Pressure Out Of Self Test Range
P1552 Barometric Pressure Sensor Circuit
P1553 Barometric Pressure Sensor Circuit Range/Performance
P1554 Barometric Pressure Sensor Circuit Low
P1555 Barometric Pressure Sensor Circuit High
P1556 Brake Booster Pressure Sensor Circuit
P1557 Brake Booster Pressure Sensor Circuit Range/Performance
P1558 Brake Booster Pressure Sensor Circuit Low
P1559 Brake Booster Pressure Sensor Circuit High
P1560 Maximum Governed Speed Fault
P1561 Quantity Adjuster Feedback Signal
P1562 Actuator Supply Voltage “A” Circuit Low
P1563 Actuator Supply Voltage “A” Circuit High
P1564 Actuator Supply Voltage “B” Circuit Low
P1565 Actuator Supply Voltage “B” Circuit High
P1566 Tach Output Circuit
P1567 Tach Output Circuit Performance
P1568 Tach Output Circuit Low
P1569 Tach Output Circuit High
P1570 Contr. Module Lock Detected – Engine Inop
P1571 Brake Switch “A”/”B” Correlation
P1572 Brake Pedal Switch Circuit Malfunction
P1573 Throttle Position Not Available
P1574 Throttle Position Sensor Disagreement btwn Sensors
P1575 Pedal Position Not Available
P1576 Pedal Position Sensor Disagreement btwn Sensors
P1577 Pedal Position Sensor/Switch “D” Circuit
P1578 Pedal Position Sensor/Switch “D” Circuit Range/Performance
P1579 Pedal Position Sensor/Switch “D” Circuit Low
P1580 Pedal Position Sensor/Switch “D” Circuit High
P1581 Throttle Inlet Control System
P1582 Idle Adapt-At Limit
P1583 Cruise Control Disabled
P1584 TPM Detection Mode Active
P1585 Throttle Control Unit Malfunction
P1586 Throttle Monitor PCM Disagreement
P1587 Throttle Monitor 2 Malfunction
P1588 Throttle Monitor 3 Malfunction
P1589 TCM Adaptive Learning At Limit
P1590 Neutral Safety Switch Malfunction
P1591 TCM Power Relay Malfunction
P1592 CAN Communication Error
P1593 TCM CAN Communication Error
P1594 Alternator Load Input Failed High
P1595 Speed Control Inoperative
P1596 Speed Control Auxiliary Input Short To Ground
P1597 Speed Control Auxiliary Input Open Circuit
P1598 A/C Pressure Sensor Voltage Too Low
P1599 A/C Pressure Sensor Voltage Too High
P1600 Loss Of KAM Power
P1601 ECM/TCM Serial Communication Error
P1602 Immobilizer/ECM Communication Error
P1603 EEPROM Malfunction
P1604 Code Word Unregestered
P1605 Rough Road Hardware Not Present
P1606 Rough 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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