C0244PWM Brake Pressure Modulation Circuit
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- No public J2012 table carries C0244, and no maker documents a meaning matching the title. The only public use is Saab's, and it concerns the engine torque signal. On the 1998 9-5 with TC/ABS 5.3 the Trionic engine module reports actual torque to the brake module as a pulse-width signal; C0244 is stored when that line is open or shorted. On the 2004 9-5 with ESP the torque value arrives over the data bus, and C0244 means the engine module flagged its own value as invalid. Either way the TCS or ESP OFF lamp comes on and the function is lost, while ABS keeps working. The pulse-width idea in the title fits this signal, not a brake pressure valve. Diagnosis starts in the engine module; the current torque can be read with a scan tool.
- What you may notice
- TCS OFF or ESP OFF lamp on
- No traction or stability control, ABS still active
- Likely causes
- LikelyOpen or shorted torque signal line between engine and brake module (Saab 9-5 1998)
- LikelyFault in the engine control module that invalidates the torque value
- RareData bus problem between engine and brake module
- Repair
- Medium · Usually a job for a workshop.Typical cost: €30 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.