B1318 | Renault

Turn off the engine and connect a digital multimeter to the battery terminals. A healthy, fully charged automotive battery should read between resting. If the reading drops below 12.0V, the battery is severely discharged or structurally failing. Step 3: Verify the Charging System

The B1318 fault is rarely an issue with the vehicle's computers themselves; instead, it points to a physical breakdown somewhere in the charging and electrical delivery system. 1. Battery Degradation renault b1318