Diagnostic Function

GENERAL INFORMATION

DIAGNOSTIC FUNCTION

Electric power steering-ECU has the following functions for easier system checks.

- DTC set
- Service data output
All the above items can be diagnosed using scan tool.

DIAGNOSTIC TROUBLE CODE SET

There are 28 diagnostic items. Since all the diagnostic results are recorded in volatile memory (EEPROM*), they are stored in the memory even though the battery terminals are disconnected.
NOTE:

- *: EEPROM (Electrical Erasable & Programmable ROM) Special type of memory that can be programmed or erased electrically.
- For each diagnostic item, refer to the Workshop Manual.

SERVICE DATA OUTPUT

Using scan tool, the input data sent from the sensors and motors can be read.
NOTE:
For each service data item, refer to the Workshop Manual.