Non-Monitored Circuits
WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
The PCM does not monitor all circuits, conditions and systems that could cause a malfunction or driveability problem. However, problems with these systems may cause PCM to store DTCs for other systems or components.
For example, a fuel pressure problem will not cause a DTC directly, but could cause a rich/lean condition or misfire. This could cause PCM to store an oxygen sensor DTC. The major non-monitored circuits are identified as follows.
- Cylinder Compression
- Excessive Oil Consumption
- Exhaust System
- Fuel Injectors
- Fuel Pressure
- PCM System Grounds
- Engine Timing
- Throttle Body Airflow
- Fuel Requirements