Chassis, generic

C0011 Left Front Outlet Control

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Covers the left front outlet (release) solenoid valve of the ABS hydraulic modulator. This valve opens to dump brake fluid from the left front caliper into the low-pressure accumulator so the module can reduce wheel pressure during an ABS or stability event, then closes to allow reapply. The control module monitors the coil for opens, shorts to power or ground and resistance outside the normal range. It is the release counterpart to the left front inlet valve C0010. A confirmed fault disables ABS, traction and stability control and lights the ABS indicator while leaving base braking functional. No manufacturer documents this code publicly; NHTSA's brake safety study names the release valve the module opens to lower wheel pressure, and a pump patent shows it as a normally closed valve beside each apply valve.

Likely causes

Outlet valve coil open or shorted
Harness or connector corrosion
Internal hydraulic modulator fault

Symptoms

  • ABS warning lamp on
  • ABS and stability control disabled
  • Normal braking retained

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€300–1,700
Time1.5–4 h

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

Parts involved

lf abs outlet valve

Related codes

C0010C0012C0015

References: rosap.ntl.bts.gov, patents.google.com, en.wikipedia.org.