20. LIGHTS/METERS/SWITCHES DOWNTOWN 125i INSPECTION Connect the fuel unit wire connectors and F turn the ignition switch "ON". Before performing the following test, operate the turn signals to determine that the battery circuit is normal. E Measure the resistance between the Yellow/White and Blue/White terminals of the fuel unit connector. Standard (at 20°C/68°F): Float at full position About1100 Float at empty position About100 20-11