Reading And Erasing Diagnostic Trouble Codes (DTCs)

Reading and erasing diagnostic trouble codes (DTCs)

This function allows stored diagnostic trouble codes (DTCs), counters and frozen values to be read off and erased. The on-board diagnostic (OBD) system can identify 34 different faults. These are in the form of diagnostic trouble codes (DTCs).
Diagnostic trouble codes (DTCs) can only be erased when all diagnostic trouble codes (DTCs) have been read at least once.
When the engine control module (ECM) detects a fault, the values of certain parameters are frozen. These can be read off with the diagnostic trouble code (DTC). The following frozen values can be read off:
- The position of the throttle position (TP) sensor
- The oil temperature
- Vehicle speed
- The engine speed (RPM)