Chassis, generic

C0074 Requested Driving Torque

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Covers the requested-driving-torque signal that the ABS/ESC module sends to the powertrain controller during traction and stability control, the counterpart to the delivered-torque signal C0073. When a driven wheel spins the stability controller computes a torque-reduction request and transmits it; this code is set when that request path is faulty, the value is out of range, or the request and the powertrain's response are inconsistent. Traction-control patents describe how the controller overrides the driver's torque demand transiently to bring slip to target by cutting spark, fuel or throttle. A fault limits traction and stability control and sets the ABS/ESC warning lamp while base braking remains; it usually appears together with powertrain or communication codes. The entry follows the SAE J2012 generic definition.

Likely causes

Fault on the torque request path
Stability or powertrain module fault
Mismatched controller calibration

Symptoms

  • Traction and stability control limited
  • ABS/ESC warning lamp on
  • Appears with powertrain DTCs

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–900
Time0.5–3 h

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

Parts involved

tcs moduleecm

Related codes

C0073C0076C006B

References: patents.google.com, en.wikipedia.org.