C1553 (blink 53) on Toyota Corolla E120: When resetting voltage, vehicle is being
Short answer: C1553 means “When resetting voltage, vehicle is being”. The car’s computer has found a fault in the EMPS system and turns on the EPS (electric power steering) warning. First check: workshop check order (RM821E): CHECK OUTPUT DTC WHEN THE IGNITION SWITCH FROM OFF TO ON.
- Code
- C1553 · blink 53
- System
- EMPS
- Dashboard light
- EPS (electric power steering) warning
- Applies to
- Cars with electric power steering only. NOT fitted on PK cars: the EPC fig 4502 hydraulic vane pump covers ZZE12#..PKN and NZE120.
- Market note
- EMPS (electric power steering) is not fitted on PK cars; PK cars use hydraulic steering.
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- ECU internal malfunction EMPS ECU Fail safe function: When this code is identified, stop the steering assist.
What to check, in order
- Workshop check order (RM821E): CHECK OUTPUT DTC WHEN THE IGNITION SWITCH FROM OFF TO ON
Related on this car
Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.

