Conditions for diagnostic trouble code (DTC):
1) Preheating requested
2) The voltage at pin A14.EB:14 is less than 29?% of the battery voltage
Observable symptoms
1) Intake air heater (IAH) does not function
2) White smoke at cold start
3) Difficult to start in extreme cold
Probable cause
1) Wiring harness
2) Connector
3) Intake air heater (IAH) relay
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Volvo Premium Tech Tool PTT 2.8.130 Diagnostic Software 04.2022 ACPI ( 1 PC )
Trucks software $143.00
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