Self-Diagnostic System: Description: Notes
WARNING: This page is about a different variant/trim than selected.
PCM is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, PCM will store a Diagnostic Trouble Code (DTC) and, in most cases, illuminate the Malfunction Indicator Light (MIL) located on instrument cluster. Malfunctions are recorded as hard failures or intermittent failures.
There are 4 types of DTC categories:
- Type "A"
Emissions related. Illuminates MIL the first time DTC sets. - Type "B"
Emissions related. Illuminates MIL if fault is active for 2 consecutive driving cycles. - Type "C"
Non-emissions related. Does not illuminate MIL, but will illuminate SERVICE light. - Type "D"
Non-emissions related. Does not illuminate MIL or SERVICE light.