Volvo All Engines (2010 Emissions) Fault Code: SPN 3249 FMI 4 PID: PPID 387 Aftertreatment DPF Intake Temperature

This diagnostic function indicates malfunction at the exhaust gas temperature (EGT) sensor. The purpose of the exhaust gas sensor is to contribute the relevant temperatures required for the temperature regulated aftertreatment diesel particulate filter regeneration control. A faulty EGT sensor can result with a failed aftertreatment (DPF) regeneration.

Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A14.EB:43 is less than 1.08?V

Diagnostic operating conditions
1) Ignition key in ON position

Observable symptoms
1) Regeneration not possible

Probable cause
1) Wiring harness between component connector and electronic control unit (ECU) connector
2) Short circuit to ground, Signal wire
3) Aftertreatment Control Module (ACM)