C0173
Right Rear ABS Outlet Solenoid Circuit Malfunction
Electrical fault in the outlet solenoid for the right rear wheel. ABS pressure release for this wheel is no longer possible.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: hard
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
Ordered by how often each turns out to be the cause.
- Outlet solenoid valve failedCommon
- Internal hydraulic unit faultPossible
Parts involved
- ABS Hydraulic Unit
- ABS Control Module
- Solenoid Valve
C0173 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.