The ODBII code U1684 indicates a communication issue between the Body Control Module (BCM) and the Instrument Panel Cluster (IPC), suggesting a failure in data exchange between these two components. The severity of ODBII code U1684 is moderate. Common Causes For: U1683 Invalid Data Received from Vehicle Control Module. Faulty Body Control Module (BCM) Faulty…

The ODBII code U1685 indicates a communication failure between the Engine Control Module (ECM) and the Body Control Module (BCM), suggesting that these two modules are unable to exchange data properly. The severity of ODBII code U1685: ECM-BCM Communication Failure is generally considered moderate to severe. Common Causes For: U1684 refers to a communication issue…

The ODBII code U1687: Instrument Cluster Communication Failure indicates a loss of communication between the vehicle’s instrument cluster and other control modules, which may affect the functionality of the dashboard gauges and warning lights. The severity of ODBII code U1687 is generally considered moderate to severe. Common Causes For: U1685 U1685: ECM-BCM Communication Failure Faulty…

The ODBII code U1688 indicates that the vehicle’s control module has received invalid or corrupted data from the Body Control Module (BCM). The severity of ODBII code U1688 is generally considered moderate. Common Causes For: U1687 U1687: Instrument Cluster Communication Failure Faulty Body Control Module (BCM) Corrupted BCM software Poor or damaged wiring/connectors between BCM…

The ODBII code U1689 indicates that the vehicle’s control module has received invalid or corrupted data from another control module, leading to communication issues within the vehicle’s network. The severity of ODBII code U1689 is generally considered moderate. Common Causes For: U1688 Invalid Data Received from Body Control Module (BCM). Faulty Vehicle Control Module (VCM)…

The ODBII code U1690 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 U1690 is generally considered moderate. Common Causes For: U1689 Invalid Data Received from Vehicle Control Module. Faulty wiring…

The ODBII code U1691 indicates a communication issue where a module on the vehicle’s communication bus is not responding or is offline, potentially due to a fault in the wiring, connectors, or the module itself. The severity of ODBII code U1691 Communication Bus Off is moderate to severe. Common Causes For: U1690 U1690: “Module Communication…

The ODBII code U1692 indicates a communication issue where the vehicle’s diagnostic system has lost communication with the Body Control Module (BCM), which is responsible for managing various electronic functions in the vehicle. The severity of ODBII code U1692 is moderate to high. Common Causes For: U1691 Communication Bus Off. Faulty Body Control Module (BCM)…

The ODBII code U1693 indicates a communication issue where a module on the vehicle’s communication bus is not responding or is offline, potentially due to a fault in the wiring, connectors, or the module itself. The severity of ODBII code U1693 Communication Bus Off is moderate to severe. Common Causes For: U1692 refers to a…

The ODBII code U1694 indicates that there is a communication failure between the vehicle’s control module and the Body Control Module (BCM), which may affect various electrical functions and systems in the vehicle. The severity of ODBII code U1694 is generally considered moderate to severe, as it indicates a communication issue that can affect various…