PACCAR MX (2004 Emissions) Fault Code: P1658 PCI ECU - Internal Error

SET CONDITIONS:
The PCI ECU (D420) detects an internal hardware error.

DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the ignition is on.

RESET CONDITION:
This DTC changes to inactive when the fault is no longer detected.

POSSIBLE CAUSES:
Defective PCI ECU (D420)

PACCAR MX (2004 Emissions) Fault Code: P1655 Yellow Warning - Short Circuit to Supply on ECU (D420) Pin (B4)

PACCAR MX (2004 Emissions) Fault Code: P1653 DtcShared.ViewModels.DtcInfoViewModel

PACCAR MX (2004 Emissions) Fault Code: P1652 Red Warning - Short Circuit to Supply on ECU (D420) Pin (B8)

PACCAR MX (2004 Emissions) Fault Code: P1650 Red Warning - Short Circuit to Ground or Open Circuit on ECU (D420) Pin (B8)

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