OBD-II code · Chassis
C0559 Power Steering Control Module Range/Performance – Rear
Rear power steering control module reading implausible (rear-wheel-steering or rear-axle steering systems).
Is it safe to drive with C0559?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule reading drifted
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Rear Eps Module
Related codes
- C0556Brake Booster Pressure Sensor Performance
- C0557Left Rear Wheel Speed Sensor A Incorrect Component Installed
- C0558Right Rear Wheel Speed Sensor A Incorrect Component Installed
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- C055BABS Pump Motor Supply Voltage Circuit A Low
- C055CABS Pump Motor Supply Voltage Circuit A Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.