Chassis, generic

C0151 Right Front ABS Inlet Solenoid Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

C0151 mirrors C0141 on the right side and, like it, is not in the accessible J2012 tables. Saab's 9-3 and 9-5 workshop pages for the Bosch 5.3 TC/ABS and for the 9-5 ESP define it as the right pressure-increase valve, separate from the right front wheel valve code C2455; GM's PIP5094 keyword list carries it, and AA1Car's GM-based table reads Right TCS Solenoid #1. In the diagonal brake layout of those cars the valve feeds pressure into the right front circuit when traction control brakes a spinning wheel. Saab watches the circuit for breaks and shorts continuously and runs the valve test above 6 km/h. Once the code sets, ABS, TCS and ESP stay off, and the brake, ABS and central warning lamps come on.

Likely causes

Defective coil of the right pressure-increase valve
Contact fault at the module-to-valve-block interface
Valve driver fault in the brake control module

Symptoms

  • Brake, ABS and central warning lamps on
  • No traction control when a front wheel spins

Repair estimate

DifficultyHardWorkshop job
Parts and labour€300–1,500
Time1–4 h

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

Parts involved

abs inlet solenoidabs hydraulic unitabs control module

Related codes

C0156C0141C0203

References: saabwisonline.com, saabwisonline.com, static.nhtsa.gov, aa1car.com.