When your Peugeot’s Check Engine light comes on, you’re left wondering what’s going on under the hood. The culprit is likely an OBD-II code, a standardized code that reveals specific issues with your vehicle’s powertrain, fuel system, or evaporative emission. But what exactly does that code mean, and how do you fix the problem?
You’re about to find out. With the right tools and knowledge, you can diagnose and address the issue, preventing further warnings and potential damage. But first, you need to understand what these codes are telling you – and that’s where we’re about to start.
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Understanding Peugeot OBD-II Codes
As you plunge into the world of Peugeot diagnostics, understanding OBD-II codes becomes essential for identifying and addressing potential issues with your vehicle.
These standardized alphanumeric combinations provide insights into your vehicle’s condition, acting as a language that your Peugeot uses to communicate potential issues.
The onboard computer stores Diagnostic Trouble Codes (DTCs) that indicate specific component issues, such as powertrain, fuel system, and evaporative emission.
When the Check Engine light illuminates, it’s time to retrieve the OBD-II code using a code reader connected to the OBD-II port.
Reading and Clearing OBD-II Codes
Your OBD-II scanner is the key to deciphering the secrets of your vehicle’s onboard computer.
To read OBD-II codes, locate the OBD-II port, typically found beneath the dashboard or under the hood, and plug in an OBD-II scanner. Verify the scanner is compatible with your vehicle’s make and model, and follow the scanner’s instructions to retrieve and interpret the codes.
These codes, also known as Diagnostic Trouble Codes (DTCs), can help identify issues affecting your vehicle’s performance and safety, such as problems with the emissions systems, Control system, or speed sensor.
When clearing OBD-II codes, use an OBD-II scanner, but avoid clearing codes without addressing underlying issues, as this can lead to repeated warnings and potentially more severe problems.
Some codes may clear on their own after a series of successful drive cycles, but it’s essential to address the underlying issue to prevent the code from reappearing and to guarantee your vehicle operates smoothly and efficiently.
Preventing and Handling OBD-II Codes
Regularly maintaining your vehicle is key to preventing OBD-II codes from appearing in the first place.
By staying on top of routine inspections, fluid changes, and timely repairs, you can address minor issues before they escalate into more significant problems.
When an OBD-II code does appear, understanding its structure and meaning is vital for effective troubleshooting and repair.
Clearing the code without addressing the underlying issue can lead to repeated warnings and potentially cause more harm to your vehicle.
Instead, identify and resolve the root cause of the problem, using your vehicle’s computer to retrieve Diagnostic Trouble Codes (DTCs) and pinpoint the fault in the system.
Most Common Peugeot OBD-II Trouble Codes
|
Code
|
Description
|
|---|---|
| U0415 | Invalid Data Received From Anti-Lock Brake System (ABS) Control. |
| P208E | Reductant Injection Valve Stuck Closed (Bank 1 Unit 1) |
| P1165 | Fuel Pressure Signal. Pressure Change Coherence. |
| P1110 | Intake air temperature (IAT) sensor (D/C) open/short. |
| P1103 | Mass Air Flow Sensor In Range But Higher Than Expected |
| P1212 | Injector control pressure Not detected during crank |
| P1213 | Start injector circuit Malfunction |
| P1214 | Pedal position sensor B circuit Intermittent. |
| P1215 | Pedal Position Sensor C Circuit Low Input |
| P1216 | Pedal Position Sensor C Circuit High Input |
| P1135 | Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction |
| P1136 | Fan Control Circuit Malfunction or Intake Valve Timing Control Solenoid Valve Circuit Bank 2 indicating control issues with engine timing or associated circuits. |
| P1137 | Lack of HO2S 2 switching – Sensor indicates lean |
| P1138 | This code typically relates to excessive fuel rail or system pressure, which can cause the engine to perform poorly. |
| P1139 | Water In Fuel Indicator Circuit Malfunction |
| P1140 | Water in fuel condition |
| P1141 | Fuel Restriction Indicator Circuit Malfunction |
| P1142 | Fuel Restriction Condition |
| P1234 | Fuel Pump Driver Module Off Line |
| P1302 | P1302 Peugeot OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illuminated and the code will be set. |
| P1303 | EGR Calibration Fault. |
| P1304 | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent |
| P1313 | Misfire Rate Catalyst Damage Fault – Bank 1. |
| P1314 | Misfire Rate Catalyst Damage Fault – Bank 2 |
| P1315 | Ignition coil malfunction in a specific cylinder. This code implies that the ignition coil or its wiring might be faulty. |
| P1316 | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent |
| P1351 | The P1351 code indicates a malfunction in the preheating system |
| P1364 | Ignition coil Primary circuit Failure |
| P1363 | Ignition Coil D Secondary Circuit Malfunction |
