Set Condition
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- First Diagnostic:
The PM Sensor module detects and reports to the PCM that the voltage on either the supply or return circuit between the sensor module and the heater in the probe goes above 7V for 3 seconds.
- Second Diagnostic:
The PM Sensor module detects and reports to the PCM that the resistance on the supply circuit between the sensor module and the heater in the probe is below 1.06 Ohms or above 2.93 Ohms at -30°C (-22°F), or below 1.81 Ohms or above 4.12 Ohms at 150°C (302°F).
- The PCM will light the Malfunction Indicator Lamp (MIL) if either diagnostic runs and fails in 2 consecutive drive cycles. The PCM will turn off the MIL when the diagnostic runs and passes in 4 consecutive drive cycles.