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.
The PM Sensor heater voltage does not increase enough with the exhaust gas flow changes during the cold start period before Exhaust Gas Temperature Sensor 1/5 reading goes above 200°C (392°F). The PCM will light the Malfunction Indicator Lamp (MIL) if this 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.