Volvo All Engines (2017 Emissions) Fault Code: P20BD11 PID: ACM Reductant Heater “B” Control
Volvo All Engines (2017 Emissions) Fault Code: P20BD11 PID: ACM Reductant Heater “B” Control
Conditions for diagnostic trouble code (DTC)
Short circuit to ground
Probable cause
1) Wiring harness
2) Hose heater (R23B)
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