Non-Monitored Circuits
WARNING: This page is about a different car, the 2000 Dodge Ram Wagon and 2000 Dodge Ram Van. However, it is still accessible from the selected car via links, so may be relevant.
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 or misfire DTC. The major non-monitored circuits are identified below.
- Cylinder Compression
- Excessive Oil Consumption
- Exhaust System
- Fuel Injector Mechanical Faults
- Fuel Pressure
- PCM Connector Engagement
- PCM System Ground
- Secondary Ignition System
- Throttle Body Airflow
- Vacuum Assist