Possible Causes

Purpose of the DTC
- To monitor post selective catalyst reduction soot sensor is capable of collect soot, component protection
Electrical interdigital electrode monitoring, component protection
Post selective catalyst reduction soot sensor status communication to powertrain control module interrupted, component protection
Electrical Cause
- Yes
Mechanical Cause
- Yes
Control Module Signal Name
- Circuit reference CAN_L_3
- Circuit reference CAN_3_H
- Circuit reference SCRMRLY (power feed to post selective catalyst reduction soot sensor)
Monitor Description
- Post selective catalyst reduction soot sensor removed from exhaust gas flow or blocked
- Functional interdigital electrode self diagnostic error of particulate
- Post selective catalyst reduction soot sensor signal is not valid
Prioritized List of Possible Causes

The powertrain control module has received an indication about the component that indicates a failure e.g. an intelligent actuator or sensor is indicating an internal fault
CAN_L_3 circuit short circuit to ground, short circuit to power, open circuit, high resistance
CAN_3_H circuit short circuit to ground, short circuit to power, open circuit, high resistance
Post selective catalyst reduction soot sensor circuit short circuit to ground, short circuit to power, open circuit, high resistance
Connector is disconnected, connector pin is backed out, connector pin corrosion Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
Post selective catalyst reduction soot sensor blocked
Post selective catalyst reduction soot sensor removal from exhaust gas flow
Post selective catalyst reduction soot sensor failure
DPF damage