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U0317 Software Incompatibility With Park Brake Control Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0317 tells that the park brake control module of an electric parking brake runs software or a calibration another module does not accept. Following GM's generic U03xx logic it is checked at 9-16 V with normal bus traffic, sets when a module is not configured properly and needs no wiring test; the cure is setup or programming. No manufacturer documents this J2012 meaning publicly. Mitsubishi reassigns the number: for the 2017 Outlander (TSB-17-23-001) U0317 stands for a CAN time-out with the EPB ECU, which a wrongly programmed TCM stored as P0317 instead; a TCM reflash corrects it. On such vehicles read U0317 as a communication fault. U0128 means lost contact, U0417 invalid data. Park brake warnings or disabled auto functions are possible; no MIL.

Likely causes

Park brake module replaced or flashed without setup
Mitsubishi: CAN time-out to the EPB ECU, e.g. connector unplugged
Software level of park brake module and partner module do not match

Symptoms

  • Park brake warning light or message
  • Automatic release or hill hold not working
  • Code appears after park brake module work

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€80–700
Time0.5–2 h

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

Parts involved

park brake modulecontrol module software

Related codes

U0128U0417U0316U0318

References: saabwisonline.com, static.nhtsa.gov, en.wikipedia.org.