00573 / G269 Steering Torque Sensor Implausible Signal: Diagnosis
Fault code 00573 means the power steering control module has received a signal from the steering torque sensor, G269, that it cannot accept as plausible. On Volkswagen Group cars with electromechanical power steering, this usually brings a steering warning light and reduced, fluctuating or absent assist. This guide explains how to record the symptoms, weigh the competing causes, order the checks sensibly and judge what the findings prove before any steering parts are replaced.
Establish the symptoms
Start by writing down exactly what the driver experiences. Note whether the steering warning symbol is yellow or red, whether assist is reduced, completely gone or cutting in and out, and whether it returns after the engine is restarted. Record when the problem appears: on a cold start, during or after cranking, after rain, a car wash or driving through standing water, over bumps, at parking speed or while cornering. A pattern tied to moisture, low battery charge or engine starting is far more useful than the code number alone.
Then list recent changes. Battery replacement or disconnection, a jump start, a wheel alignment, suspension or steering work, a curb strike, lowering springs or other ride height changes, and newly fitted electrical accessories can all be relevant. Save the complete fault memory rather than just noting 00573. Freeze-frame data such as mileage, supply voltage, temperature and whether the fault is stored as static or intermittent will narrow the diagnosis. Other codes logged at the same time, for example supply voltage, steering angle sensor or data bus faults, change which cause is most likely.
Distinguish plausible causes
An internal failure of the torque sensor or the electronics in the steering gear is a common explanation. On many models G269 is built into the steering gear and is not supplied as a separate part, so a confirmed internal fault usually means replacing the gear assembly. This cause is supported when the code returns as static soon after clearing, supply voltage is healthy at the time of the fault, the connector is clean and no related codes are present. It is weakened when the fault only appears alongside logged low voltage.
Supply and ground problems form the second group. A weak battery, poor charging output, corroded or loose battery terminals, a damaged ground strap or a poor high-current connection to the steering module can produce implausible readings. Support for this comes from low voltage in the freeze frame, voltage-related codes or faults that occur during cranking. A normal recorded voltage at the moment the fault was set makes this less likely.
The third group is moisture and wiring damage at the steering gear: torn boots, water ingress, corroded connector pins or a harness disturbed during earlier work. Repairs can also be a source. A wrong replacement part, incorrect coding or incomplete basic settings after steering or alignment work may leave the module reporting implausible values. Mechanical faults such as tie rod joint play or loose rack mounting points do not normally set this electrical code on their own, but they cause steering complaints that are easily confused with it and need separate attention.
Checks in a useful order
Begin with observations that need no tools. Watch how the warning light behaves across several starts, note the battery's age and look for visible corrosion or looseness at the terminals. Check whether the symptom follows wet weather. Do not unplug steering connectors with the ignition on, and do not attempt to force the steering or work beneath the car while it rests only on a jack.
Next, use a scan tool that can communicate with the steering assist module, which sits at address 44 on many Volkswagen Group cars. Read every module and save the report, then clear the codes and road test to see whether 00573 returns as static or intermittent. Live data for the torque sensor and supply voltage should change smoothly when the wheel is turned, without jumps or dropouts; compare the readings with the values in the factory repair information rather than guessing what is normal. Test the battery under load and confirm charging voltage with the engine running.
Inspecting the steering gear connector, boots, tie rods, inner joints and mounting points requires the car to be raised on a lift or on stands placed at the manufacturer's specified lift points, with proper vehicle support throughout. Any disturbed fastener must be tightened to the fastener specification for that model, and some steering and suspension bolts are single-use. Steering gear replacement, coding, adaptation, steering angle calibration and the follow-up wheel alignment belong with a qualified technician who has the correct procedures and equipment.
Interpret the findings
A static fault that returns immediately with healthy voltage, a clean dry connector and no related codes points towards an internal fault in the steering gear. Even then, complete the guided fault-finding for the wiring and supply, and ask whether a software update or service information applies to that vehicle before condemning the assembly. An intermittent fault stored together with low voltage indicates the supply should be repaired first; clear the codes and retest before spending money on steering parts.
Corrosion found in the connector may be repairable, but if water has entered the gear housing the internal electronics may already be damaged, so recurrence after cleaning calls for further diagnosis. A code that appeared after alignment or other repairs, especially with a steering angle sensor fault, suggests that the required calibration or basic settings should be completed before anything else. Joint play or loose mounting points must be repaired for safety but do not by themselves explain an implausible sensor signal. Clearing the code and seeing assist return does not prove the fault is fixed.
Urgency and next action
Stop using the car and arrange transport if the red steering warning appears, assist is lost while driving, the steering binds, feels notchy, fails to self-centre, pulls suddenly, knocks or feels loose, or the warning followed an impact. Losing assist makes steering much heavier, particularly at low speed, and an unexpected change partway through a turn is dangerous. A yellow warning that comes and goes still needs prompt diagnosis; no safe remaining distance can be promised for a car with this fault.
Give the repairer the full scan report with freeze-frame data, the VIN, the steering gear part number if it is readable, battery age and any voltage readings, and a clear description of when the fault occurs. Mention recent work such as a battery change, wheel alignment, suspension parts or ride height changes. Ask for the diagnosis to be confirmed with the manufacturer's guided procedure, and if the steering gear is replaced, for the required coding, adaptation, steering angle calibration and an alignment check to be completed and documented.