C1898: Steering VAPS II Circuit Loop Open
HighChassisSteering
What does C1898 mean?
C1898 is a diagnostic trouble code indicating "Steering VAPS II Circuit Loop Open". This means there is an electrical break in the steering wiring — a connector may be unplugged, a wire broken, or a component has failed internally. The ECU detected no signal where it expected one.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Intermittent warning lights
- Erratic gauge readings
Estimated repair cost
Typical range in Australia (parts + labour)
$80 – $400 AUD
Common causes
- Damaged or corroded wiring harness
- Loose or disconnected electrical connector
- Failed steering sensor or actuator
- Blown fuse in the related circuit
- Poor ground connection
What should you do?
This code sits in the steering system. Power assistance can cut out without warning, which makes the wheel go heavy, usually worst at parking and low speeds. Steering itself does not disappear, but the effort changes suddenly. Get it diagnosed before driving.
Get a diagnosis for YOUR car
Code C1898 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.