Paccar

PACCAR MX (2004 Emissions) Fault Code: P0219 Engine Speed – Data Valid but Too High SET CONDITIONS:The PCI ECU (D420) detects that the engine speed is above 2300 rpm. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the engine is running. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:1. This DTC changes to inactive when the fault is no longer detected.2. This fault cannot be cleared from the ECU memory. REPAIR VERIFICATION:1. Contact your engine field service representative for authorization to clear the warranty DTC.2. Clear all DTCs.3. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.4. Did the...

PACCAR MX (2004 Emissions) Fault Code: P0221 CAN Communication – Message (EEC2) Out of Range, Remote Accelerator Pedal Position SET CONDITIONS:This DTC is set when the CAN message is received correctly but the content (signal value or status) is out of the expected range. DIAGNOSTIC CONDITION:The diagnostic runs continuously when the ignition is keyed on or when the engine is running. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:The DTC changes to inactive after the diagnostic runs and passes. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come...

PACCAR MX (2004 Emissions) Fault Code: P0261 Common Rail Pump Unit 1 – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (A25) SET CONDITIONS:This DTC is set when the ECU detects a lower voltage than expected on the signal or control circuit of the ECU. DIAGNOSTIC CONDITION:The diagnostic runs continuously when the ignition is keyed on. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:The DTC changes to inactive after the diagnostic runs and passes. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back?–...

PACCAR MX (2004 Emissions) Fault Code: P0262 Common Rail Pump Unit 1 – Voltage Too High or Short Circuit to Supply on ECU (D420) Pin (A25) SET CONDITIONS:This DTC is set when the ECU detects a higher voltage than expected on the signal or control circuit of the ECU. DIAGNOSTIC CONDITION:The diagnostic runs continuously when the ignition is keyed on. CORRESPONDING OBD READINESS MONITOR:None RESET CONDITION:The DTC changes to inactive after the diagnostic runs and passes. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.3. Did the DTC come back?–...

PACCAR MX (2004 Emissions) Fault Code: P0263 Cylinder 1 – Torque Contribution Too Low SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 1 is lower relative to the other cylinders. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is running at a steady speed and load, and the vehicle speed is steady. CORRESPONDING OBD READINESS MONITOR:Fuel system monitor RESET CONDITION:This DTC changes to inactive when the fault is no longer detected. REPAIR VERIFICATION:1. Clear all DTCs.2. Test drive or operate the vehicle to meet the following conditions:– Corresponding readiness monitor displays ‘Ready’– Diagnostic conditions are met– Set...