C0307Inlet Valve Rear Right Performance
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0307 has no public trace: not in the accessible J2012 lists, not in GM's PIP5094 or AA1Car's GM table, and not in the NHTSA bulletin index. Described here is the rear right inlet valve of the title. In an ESP valve block it does more than ABS work: Saab explains for the 9-5 that both valves of each rear wheel are also driven during stability interventions, so that pressure can be shaped at all four corners while the pump runs. A rear right inlet valve that answers slowly therefore spoils both ABS stops and stability corrections that brake the right rear wheel. The self-test at ignition-on catches coil faults; hydraulic slowness shows up during regulation. Either way ABS and ESP are switched off with their lamps.
- What you may notice
- ABS and stability control lamps on
- Stability control unavailable
- Likely causes
- PossibleRear right inlet valve slowed by dirt or aged fluid
- PossibleCoil of the valve or brake module output defective
- RarePoor contact between brake module and valve block
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.