GM P1381 Error Code: How to Fix It

Q: Can I drive with GM error code P1381?

You should not drive with P1381 as it affects both engine performance and brake system communication. This can compromise vehicle safety, especially braking assistance features like ABS.

Q: What causes P1381 error code in GM vehicles?

P1381 is typically caused by damaged wiring between the ECM and EBCM, a faulty EBCM module, severe engine misfires that disrupt communications, or corroded electrical connections.

Q: How much does it cost to fix GM P1381 error?

Repair costs range from $100-200 for wiring repairs to $800-1500 for EBCM replacement. Diagnostic fees typically run $100-150. Simple connection cleaning may cost under $100.

Q: Will P1381 cause my GM vehicle to fail inspection?

Yes, P1381 will likely cause your vehicle to fail emissions inspection since it's an active diagnostic trouble code affecting engine and brake system communication.

Q: Can a bad battery cause GM P1381 error?

A weak or failing battery can cause communication errors between modules, potentially triggering P1381. Always test battery and charging system when diagnosing communication codes.

Abstract

GM error code P1381 indicates a misfire has been detected but the Engine Control Module (ECM) cannot communicate with the Electronic Brake Control Module (EBCM). This communication breakdown can affect both engine performance and brake system functions, requiring immediate attention to ensure safe vehicle operation.