C1521: Motor excessive current
Short answer: C1521 means “Motor excessive current”. Below is what it means on each of the 2 cars we cover, with a link to the full page for each car.
C1521 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | Motor excessive current (C1521/21) | high |
| Toyota Corolla (9th gen, E120) | Motor Circuit Malfunction (C1521/21) | high |
Symptoms
- Warning lamp per chart (see page)
Likely causes
- Motor excessive current
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.