Volvo All Engines (2013 Emissions) Fault Code: P115700 PID: EMS Reductant Control Module Sensor Power Supply “A” Circuit Low

Volvo All Engines (2013 Emissions) Fault Code: P115700 PID: EMS Reductant Control Module Sensor Power Supply “A” Circuit Low

Circuit description
The control module provides the following sensors with 5V supply voltage
Aftertreatment DPF Differential Pressure Sensor
If an abnormal voltage or current is detected on the common supply a DTC is set

Conditions for diagnostic trouble code (DTC)
The voltage at pin A137:50 is less than 4.5?V

Observable symptoms
None

Probable cause
1) Wiring harness
2) Connector
3) Aftertreatment DPF Differential Pressure Sensor
4) Aftertreatment Control Module (ACM)