PACCAR MX (2004 Emissions) Fault Code: P109C Common Rail Pressure Release Valve – Current Too Low or Open Circuit on ECU (D420) Pin (C4)

PACCAR MX (2004 Emissions) Fault Code: P109C Common Rail Pressure Release Valve – Current Too Low or Open Circuit on ECU (D420) Pin (C4)

POSSIBLE CAUSES:
No repairs are necessary.

ADDITIONAL INFORMATION:
Do not troubleshoot this DTC.