Vent Circuit Open Test

If resistance in step 4) of ISOLATION TEST  was greater than 55 ohms, remove servo connector. Measure resistance between servo terminals "A" and "C". If resistance is greater than 55 ohms, replace servo. If resistance is less than 55 ohms, check for open in circuit No. 403 (Dark Blue/White wire) between module terminal "C" and servo terminal "A". Ensure servo terminal "C" (Black wire) connector is grounded.