How To Tell If You Have Variable Assist Power Steering?

Vehicles are getting increasingly easier to drive by the day because of the technological progress of the automotive industry. The variable-assist power-assisted steering is one such thing that creates car steering much more manageable. But, the way how to tell if you have variable assist power steering.

A couple of the ways to work out if you’ve got variable-assist power-assisted steering or not are by checking the underside of any spare tire’s cover, the vehicle’s build tag, or your car’s specs. Moreover, a droop flow pump test also can are available handy.

What Is Variable-Assist Power Steering?

Variable assist power-assisted steering may be a system that permits you to steer your vehicle with less effort. With a variable-assist steering mechanism, your car needs reduced assist while driving at high speed to supply proper stability. Similarly, at low rates, it receives more assist. It allows drivers to maneuver their cars at low and high speeds with the smallest amount of effort.

How Does A Variable-Assist Power-Assisted Steering System Work?

The variable-assist power-assisted steering system controls and varies the fluid pressure within the gear or rack of your car. Pressure sensors within the vehicle send data to the control unit, which successively controls the pressure accordingly. This increases the car’s stability and prevents it from getting out of control of the driving force.

How To Tell If You Have Variable Assist Power Steering?

Checking if your vehicle uses and features variable-assist power-assisted steering or not is often challenging. Many drivers won’t even know what the variable assist-power steering is. Besides, you won’t always be ready to determine if you’ve got variable-assist steering by just observing your car’s performance. This is often because most vehicles’ steerings become lighter with increased speed.

We’ll provide you with some easy ways to work out if you’ve got variable-assist power-assisted steering or not.

Method 1. Check The Underside Of The Glove Handle Cover:

The underside of your car’s Glove handle cover will have a Service Parts Identification label. If you see the three-character code NV7 on the title, meaning your car does have variable-assist power-assisted steering. You won’t find this during a separate component since it’s built-in as a neighborhood of the steering rack.

Method 2. Check The Build Tag:

To check if your vehicle features a gm variable-assist power-assisted steering or not, look under your trunk’s lid. You ought to find a code there, and if the code reads 1SC, you have the gm variable-assist power-assisted steering.

Method 3. From Vehicle Specifications:

Search online for the vehicle’s specifications; otherwise, you could also get the specs from the car manual or the dealership you purchased it from. Now, the vehicle specifications must state if the vehicle employs variable power assist or not. Confine mind that vehicle specification isn’t equivalent because of the variable ratio.

If you’re unable to seek out the vehicle specs anywhere, you would like to maneuver on to visual inspection. How to tell if you have variable assist power steering, made easy by checking the vehicle specification.

Method 4. Search For Wiring Harness Round The Pump:

Inspect the wiring harness leading towards the solenoid at the output line of your car’s Pump. If this setup is present, it means you’ve got a Variable Effort Steering. It works by varying the output coming from the orifice of the Pump. With this one, you don’t need to perform any testing procedure with the hydraulic systems.

Method 5. Search For Wiring Harness Round The Spool Valve:

If there’s a wiring harness protruding from the rack of the spool valve, variable-assist power-assisted steering works magnetically. Magnetic variable-assist steering is one among the old versions of variable-assist power-assisted steering, and it’s also referred to as Magnasteer or MSVA.

Method 6. Try A Droop Flow Pump Test:

In this test, you would like to see at which points your car’s pump flow droops or stays equivalent despite an increased engine rpm. You furthermore may get to check this with a change within the metering valve. If the droop flow pump remains equivalent, then you are doing have a hydraulic power assist. The above methods can be used on how to tell if you have variable assist power steering.

What Is The Difference Between Active Steering And Variable-Assist Power Steering?

The working system of the variable-assist steering can show some striking similarities thereupon of the active steering system. However, both are pretty different in terms of labor and response triggers. The variable-assist system helps you park appropriately at lower speeds and reduces the extent of assistance once you are driving at high speeds. In This manner, your vehicle’s stability increases while causing and provides you a smooth riding experience.

On the opposite hand, active steering allows you to show the vehicle’s wheel at rock bottom possible speed to enhance the performance while parking or driving at low rates. At a better pace, it reduces the occurrence of jerks. Its mechanism is sort of different from that of the variable-assist system.


That was all from our side on the way to tell if you’ve got variable-assist power-assisted steering. Firstly, you ought to search the underside of any love handle to protect a code NV7, and next, you ought to check the vehicle’s build tag. Else, you’ll also know an equivalent from the vehicle’s specifications.

However, the most uncomplicated thanks to confirming if you’ve got variable-assist power-assisted steering are by executing a droop flow pump test. We hope the above article helps you identify and how to tell if you have variable assist power steering or not.

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