Chassis, generic

C0460 Steering Position Signal Implausible

Check engine lightUsually off
EmissionsNot relevant
Drive cycleRequired
Limp modePossible

C0460 is not in the accessible J2012 lists; GM and Saab use it for the steering angle signal. On the 2016 Malibu the EBCM sets it after a brief low-voltage event, and turning lock to lock with ignition on resets the sensor (16-NA-151). On 2017–2018 XT5 and Acadia, C0460 symptom 5A in the power steering module came from a sensor trim error and is fixed by reprogramming (17-NA-284); PIE0481A pairs it with C0545 on 2009–2012 Malibu, G6 and Aura. The Saab 9-3 sets it if the angle rate passes 3000°/s, the computed offset passes 18°, the angle exceeds ±720° or freezes. Lotus uses C0460 for something else: the pressure sensor in Bosch ESP8 units, often tripped by a misadjusted brake light switch.

Likely causes

Brief low voltage leaving the sensor uninitialised
Sensor trim error or control module software (GM 17-NA-284)
Angle offset after alignment or steering work
Steering angle sensor or column module defective

Symptoms

  • Traction or stability control lamp on
  • Reduced Steering Assist message, sometimes without actual loss of assist
  • Stability control switched off

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–600
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

steering angle sensorabs control moduleeps control module

Related codes

C0455C0710C0545C0528

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, saabwisonline.com.