C0146Left Front ABS Outlet Solenoid Circuit
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Like its neighbours, C0146 is missing from the accessible J2012 tables and is documented only in Saab and GM material. Saab's 9-3/9-5 data for the Bosch 5.3 TC/ABS name it the left pressure-reduction valve, the ESP version of the 9-5 calls it the left pressure relief valve; the GM keyword list PIP5094 includes the number and AA1Car's GM-based table labels it Left TCS Solenoid #2. Its job is the opposite of C0141: it lets pressure out of the left circuit again. Its title reads it as the left front outlet valve, which matches that role. With the Saab diagnostic tool the valve can be clicked at 1 Hz for about 30 seconds to confirm whether it responds. A failure takes ABS, traction control and ESP out of service.
- What you may notice
- Several brake-related warning lamps on together
- ABS, traction and stability control unavailable
- Likely causes
- LikelyOpen or shorted coil of the left pressure-reduction valve
- PossibleControl module fault (Saab replaces the control module after checks)
- RareWeak supply or ground to the brake control unit
- Repair
- Hard · Usually a job for a workshop.Typical cost: €300 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.