Circuit Description
WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.
Pn system. It constantly looks at information from various sensors, and controls systems that affect vehicle performance. PCM also performs diagnostic function of system. It can recognize operational problems, alert driver through the MIL, and store DTC(s).
Condition for setting DTC is:
- PCM cannot communicate internally.