The ODBII code U1386 indicates that the vehicle’s control module has received invalid or corrupted data from another control module, which may affect vehicle performance or functionality. The severity of ODBII code U1386 is generally considered moderate. Common Causes For: U1385 Invalid Data Received from the Instrument Panel Cluster (IPC)”. Faulty Vehicle Control Module (VCM)…

The ODBII code U1387 indicates a communication failure between control modules in a vehicle, suggesting that one or more modules are not properly communicating with each other. The severity of ODBII code U1387 is moderate. Common Causes For: U1386 Invalid Data Received from Vehicle Control Module. Faulty control module Poor electrical connections Damaged wiring harness…

The ODBII code U1388 indicates a “Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which may affect their ability to share data or function properly. The severity of ODBII code U1388 is moderate. Common Causes For: U1387 U1387: “Control Module Communication Failure” Faulty wiring or connectors Malfunctioning control…

The ODBII code U1389 indicates a communication issue where a control module is unable to communicate on the vehicle’s communication bus, often due to a fault in the module or wiring. The severity of ODBII code U1389 is moderate to severe. Common Causes For: U1388 U1388: “Module Communication Failure” Faulty control module Poor electrical connections…

The ODBII code U1390 indicates that there is a loss of communication between the vehicle’s control module and the Body Control Module (BCM), which may affect various electrical systems and functions. The severity of ODBII code U1390 is generally considered moderate to severe. Common Causes For: U1389 Control Module Communication Bus Off. Faulty Body Control…

The ODBII code U1391: ECM Communication Malfunction indicates a communication issue between the Engine Control Module (ECM) and other control modules in the vehicle. The severity of ODBII code U1391 is generally considered moderate. Common Causes For: U1390 Lost Communication with the Body Control Module (BCM). Faulty Engine Control Module (ECM) Poor electrical connections or…

The ODBII code U1392 indicates a “Control Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which can affect various systems and functions. The severity of ODBII code U1392 is moderate to severe. Common Causes For: U1391 U1391: ECM Communication Malfunction Faulty control module Poor electrical connections Damaged wiring…

The ODBII code U1393 indicates a “Control Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which can affect various systems and functions. The severity of ODBII code U1393 is moderate to severe. Common Causes For: U1392 U1392: “Control Module Communication Failure” Faulty control module Damaged wiring or connectors…

The ODBII code U1394 indicates a “Control Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which can affect various systems and functions. Moderate to Severe. Common Causes For: U1393 U1393: “Control Module Communication Failure” Faulty control module Poor electrical connections Damaged wiring harness Corroded connectors Software issues or…

The ODBII code U1395 indicates a “Control Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, which can affect various systems and functions. Moderate. Common Causes For: U1394 U1394: “Control Module Communication Failure” Faulty wiring or connectors Failed control module Poor ground connections Corroded or damaged connectors Software issues…