Volvo All Engines (2017 Emissions) Fault Code: P054300 PID: EMS Intake Air Heater A Circuit Open
Volvo All Engines (2017 Emissions) Fault Code: P054300 PID: EMS Intake Air Heater A Circuit Open
Circuit description
The preheat function is used to warm up the inlet air during cold conditions both before and after cranking to make the starting easier and better for the environment at very low temperatures. This diagnostic trouble code (DTC) detects a faulty preheat function.
Conditions for diagnostic trouble code (DTC)
The voltage at pin A14.EB:7 is 91 %-91 % battery voltage
Observable symptoms
Preheating does not function
Difficult to start in extreme cold
Probable cause
1) Faulty connection
2) Fusible Link
3) Intake air heater (IAH) relay
4) Wiring harness
5) Intake air heater element
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