C0279: Short in ABS Solenoid Relay Circuit
Short answer: C0279 means “Short in ABS Solenoid Relay Circuit”. Below is what it means on each of the 2 cars we cover, with a link to the full page for each car.
C0279 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Vitz (1st gen) | ABS solenoid relay circuit (short) | medium |
| Toyota Corolla (9th gen, E120) | Short in ABS Solenoid Relay Circuit (C0279/12) | high |
Symptoms
- When solenoid relay is turned ON, relay contact is OFF for 0.2 sec. or longer. Immediately after IG1 is turned ON, when solenoid relay is turned OFF, relay contact is ON for 0.2 sec. or longer.
Likely causes
- ABS solenoid relay; ABS solenoid relay circuit
What to check, in order
- Workshop check order (RM821E): INSPECT SKID CONTROL ECU CONNECTOR (+BS TERMINAL VOLTAGE) -> CHECK DTC ONCE MORE -> INSPECT CONTACT CONDITION -> INSPECT FUSES (ABS No. 1 FUSE)
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.