Paccar

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: P1674 PCI ECU – Software Error SET CONDITIONS:Programmed data in the ECU not correct. DIAGNOSTIC CONDITION:This diagnostic runs during start-up of the PCI ECU. RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. POSSIBLE CAUSES:Software fault ADDITIONAL INFORMATION:1. The PCI ECU does not start up.2. Engine cannot be started.

PACCAR MX (2004 Emissions) Fault Code: P1675 PCI ECU – Software Error SET CONDITIONS:Programmed data in the ECU not correct. DIAGNOSTIC CONDITION:This diagnostic runs during start-up of the PCI ECU. RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. POSSIBLE CAUSES:Software fault ADDITIONAL INFORMATION:1. The PCI ECU does not start up.2. Engine cannot be started.

PACCAR MX (2004 Emissions) Fault Code: P1676 PCI ECU – Software Error SET CONDITIONS:Programmed data in the ECU not correct. DIAGNOSTIC CONDITION:This diagnostic runs during start-up of the PCI ECU. RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. POSSIBLE CAUSES:Software fault ADDITIONAL INFORMATION:1. The PCI ECU does not start up.2. Engine cannot be started.

PACCAR MX (2004 Emissions) Fault Code: P1677 PCI ECU – Software Error SET CONDITIONS:Programmed data in the ECU not correct. DIAGNOSTIC CONDITION:This diagnostic runs during start-up of the PCI ECU. RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. POSSIBLE CAUSES:Software fault ADDITIONAL INFORMATION:1. The PCI ECU does not start up.2. Engine cannot be started.