The P2514: Event Data Recorder Request Circuit High refers to an issue where the Event Data Recorder (EDR) request circuit is receiving a higher-than-expected voltage or signal. This could indicate a faulty EDR, an issue with the power supply, or problems with the wiring or connectors that are causing excess voltage to flow into the EDR circuit. It is important to address this problem to ensure the EDR can function as intended in recording critical vehicle data.
P2514 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2514: Event Data Recorder Request Circuit High |
| Is it serious? | Moderately serious, as it may prevent proper recording of vehicle event data in the case of an accident or significant event. |
| Possible causes | – High voltage or signal in the Event Data Recorder request circuit – Faulty Event Data Recorder – Wiring or connector issues |
| How to diagnose? | – Measure the voltage and signal in the Event Data Recorder request circuit – Inspect and test the Event Data Recorder – Check wiring and connectors – Replace faulty components if needed |
Code Meaning
The P2514: Event Data Recorder Request Circuit High code indicates that the voltage in the Event Data Recorder (EDR) request circuit is higher than the manufacturer-specified range. This abnormal voltage can prevent the EDR from functioning properly, potentially compromising its ability to record vehicle data accurately. The issue might stem from incorrect power supply levels, faulty wiring, or a malfunctioning EDR module.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to determine if there are any additional related codes that could help identify related issues affecting the EDR circuit. | OBD-II Scanner |
| Measure Voltage in the EDR Request Circuit | Use a multimeter to measure the voltage in the EDR request circuit. Compare the voltage readings to the specifications in the vehicle’s service manual to determine if the voltage is excessively high. | Multimeter |
| Inspect the Event Data Recorder | Inspect the EDR for visible signs of damage, such as overheating or physical damage. Make sure it is properly connected and that the power supply connections are secure. | Flashlight, Safety Gloves |
| Check Wiring and Connectors | Examine all wiring and connectors that are associated with the EDR circuit. Look for any corroded, frayed, or loose wires and connectors that could be causing a high voltage condition. | Flashlight, Multimeter |
| Test the Event Data Recorder | Use a diagnostic tool to test the functionality of the Event Data Recorder. Check whether it is properly processing the incoming signals. Replace if it is determined to be faulty or unresponsive. | Diagnostic Tool |
| Verify Power Supply | Ensure that the power supply to the EDR is not exceeding the proper voltage levels. Check for any issues in the battery, alternator, or other electrical systems that could lead to overvoltage. | Battery Tester, Multimeter |
| Replace Faulty Components | Replace any faulty components found, including wiring, connectors, or the Event Data Recorder itself. Ensure that all replacement parts meet the manufacturer’s specifications. | Replacement Parts, Vehicle Owner’s Manual |
| Clear the Code and Test | Clear the P2514 code using an OBD-II scanner after repairs are made. Conduct a system test to verify that the EDR request circuit is now operating at the correct voltage level. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the vehicle after the test to confirm that the P2514 code has not returned. If the code reappears, further diagnostics may be required to locate any persistent faults. | OBD-II Scanner |
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