On-Board Diagnostic (OBD) Test Description

ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS

On-Board Diagnostic (OBD) Test Description

- The OBD test inspects the integrity and function of the EPS and outputs the results when requested by the specific tests.
- On-board diagnostic test also:

- Provides a quick inspection of the EPS usually performed at the start of each diagnostic procedure.
- Provides verification after repairs to ensure that no other faults occurred during service.
- The OBD test is divided into 3 tests:

- Read/clear diagnostic results, PID monitor and record and active command modes.

Read/clear diagnostic results

- This function allows reading or clearing of DTCs in the EPS control module memory.

PID/Data monitor and record

- This function allows access of certain data values, input signals, calculated values, and system status information.

Active command modes

- This function allows control of devices through the M-MDS.