CorollaFix

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

  1. ECU internal malfunction EMPS ECU Fail safe function: When this code is identified, stop the steering assist.

What to check, in order

  1. Workshop check order (RM821E): CHECK OUTPUT DTC WHEN THE IGNITION SWITCH FROM OFF TO ON

Related on this car

← C1552/52 C1554/54 →

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.