GM P1380 Error Code: How to Fix It

Q: What causes GM P1380 error code?

P1380 is caused by a communication breakdown between the ECM and EBCM modules. Common causes include blown fuses, damaged wiring, corroded connections, or a faulty EBCM module that prevents rough road data sharing.

Q: Can I drive with P1380 code?

You can typically drive with P1380, but the engine may experience reduced performance or false misfire detection. The code can also prevent other diagnostic functions from working properly, so it should be repaired promptly.

Q: Will P1380 cause my car to fail emissions testing?

Yes, P1380 will likely cause your vehicle to fail emissions testing because it indicates a malfunction in the engine management system. The code must be resolved and the readiness monitors must complete before passing emissions.

Q: How much does it cost to fix P1380?

Repair costs vary widely depending on the cause. Simple fixes like blown fuses cost under $10, while wiring repairs range from $200-500, and EBCM replacement can cost $800-1500 including labor.

Q: Is P1380 related to ABS problems?

Yes, P1380 is directly related to communication with the ABS system's EBCM module. You may also notice ABS warning lights or reduced ABS functionality alongside this engine code.

Abstract

GM error code P1380 indicates a misfire has been detected, but the Engine Control Module (ECM) cannot access rough road data from the Electronic Brake Control Module (EBCM) to verify if the misfire is real or caused by road conditions. This communication issue between modules can trigger false misfire codes and affect engine performance.