Diagnostic Trouble Codes (DTCS)

A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults are defined as intermittent.

The control module can store up to ten diagnostic trouble codes (DTCs).

Should a fault disappear for any reason after being permanently stored in the control module as a diagnostic trouble code (DTC), the information remains stored in the control module.

If a fault is no longer permanent, the diagnostic trouble code (DTC) remains as intermittent.