2013 passat tdi sel premium vcds1/24/2024 When the ammeter or DVOM is put in series with the circuit you disconnect the battery booster. To do this you can put a battery booster on the pos and neg terminal clamps and remove the terminals from the battery. This is to keep the modules powered so that they don't all awake when they shouldn't showing a false draw issue. No, if you're looking for parasitic draw you'll want to leave the battery circuit powered while disconnecting the battery to install an ammeter in series. There just isn't a point in bothering with all that. It then looks at the current steering wheel angle and says, "Okay that must be center."ĭon't bother trying to power the fuel box or ECM while the battery is disconnected. When all 4 wheels are going the same speed the car knows it's not turning. The car will use the 4 wheel speed sensors while driving to determine what should be center on the steering wheel. Just drive it and make a couple left and right turns and the faults will disappear. Modifications reported by the seller are limited to hidden features enabled via Ross-Tech VCDS software, as described below. When you disconnect your battery you'll have traction control and steering faults on the dash. The fact is that system will learn all it needs under normal driving. The procedure has you turn the wheel lock to lock a few times and such but it's not really necessary. Disconnecting the battery does about the same thing as doing the power steering reset through VCDS.
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