Chassis, generic

C0209 ABS Solenoid Valve Rear Right Circuit

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modePossible

C0209 appears in none of the accessible J2012 tables, NHTSA bulletins or manufacturer indexes and is therefore not publicly verifiable. Its title, a circuit fault of the rear right ABS solenoid valves, corresponds to Saab's C2485 on the 9-5 with Bosch TC/ABS. In the Saab ESP unit twelve valves share one block: an inlet and an outlet valve for each wheel plus two pairs used only for traction control. At every key-on the module pulses all valves for 20 ms alongside the pump test, and any failure turns off ESP, TCS and ABS together. Bosch describes the same layout of per-wheel valves, return pump and electronics in one hydraulic unit. MOTOR notes that a single bad solenoid often means replacing the whole valve block, so exact coil and wiring tests come first.

Likely causes

Open or shorted coil of a rear right valve

Poor contact between control module and valve block

Internal failure of the hydraulic unit

Symptoms

ABS, brake and ESP OFF lamps on
No anti-lock, traction or stability intervention

Repair estimate

DifficultyHardWorkshop job

Parts and labour€100–1,500

Time0.5–3 h

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

Parts involved

abs solenoid valve rrabs hydraulic blockabs control module

Related codes

C0206 C0168 C0173

References: saabwisonline.com, saabwisonline.com, bosch-mobility.com, motor.com.