Chassis, generic

C0735 Electric Power Steering Module Internal Fault

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

No known public source uses C0735; it is absent from the published J2012 lists, from NHTSA bulletins and from maker indexes. Carmakers report an internal EPS controller fault under other codes. GM uses C056D as a general hardware fault and asks technicians to reprogram the module first when symptom 39 is set (PIT5213B, 2014-15 trucks and SUVs). Stellantis uses C2217-00; on the 2023 Wagoneer and Grand Wagoneer it came with loss of assist and a steering lamp and was improved by new software (08-147-23), while on the 2019 Cherokee bulletin 08-034-20 excludes cases where C2217 is active and assist is gone with the engine running. Nexteer stresses redundant hardware and parallel software paths so that a single internal fault does not remove all assist at once.

Likely causes

Module software fault, cleared by reprogramming
Internal hardware failure of the EPS controller
Wrong steering gear or module installed, setup not completed

Symptoms

  • Service power steering message, steering lamp on
  • Assist reduced or absent from start-up

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–2,500
Time0.3–5 h

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

Parts involved

eps control module

Related codes

C05D6U0131C0740

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