C1239: Wheel speed sensor RL abnormal intervals
Short answer: C1239 means “Wheel speed sensor RL abnormal intervals”. Below is what it means on each of the 2 cars we cover, with a link to the full page for each car.
C1239 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | Wheel speed sensor RL abnormal intervals (C1239/28) | high |
| Toyota Corolla (9th gen, E120) | Foreign Matter is Attached on Tip of Left (C1239/39) | high |
Symptoms
- Warning lamp per chart (see page)
Likely causes
- Wheel speed sensor RL abnormal intervals
What to check, in order
- Follow manual section procedure for this code
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.