Paccar

PACCAR MX (2004 Emissions) Fault Code: P151C Aftertreatment System – DEF Level Too Low SET CONDITIONS:The DEF level is less than 20% of the DEF tank volume. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on. RESET CONDITION:This DTC becomes inactive after the ignition is keyed on and the volume in the DEF tank is above the set condition value. POSSIBLE CAUSES:Empty DEF tank ADDITIONAL INFORMATION:The driver has been informed by a flashing warning.

PACCAR MX (2004 Emissions) Fault Code: P151D Aftertreatment System – DEF Level Very Low SET CONDITIONS:The DEF level is less than 15% of the DEF tank volume. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on. RESET CONDITION:This DTC becomes inactive after the ignition is keyed on and the volume in the DEF tank is above the set condition value. POSSIBLE CAUSES:Empty DEF tank ADDITIONAL INFORMATION:This DTC activates an engine torque derate of 25% and P1518 becomes active.

PACCAR MX (2004 Emissions) Fault Code: P151E Aftertreatment System – DEF Tank Empty SET CONDITIONS:The DEF level is less than 11% of the DEF tank volume. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on. RESET CONDITION:This DTC becomes inactive after the ignition is keyed on and the volume in the DEF tank is above the set condition value. POSSIBLE CAUSES:Empty DEF tank ADDITIONAL INFORMATION:1. This DTC activates an engine torque derate of 40% and P151B becomes active. 2. This DTC activates a 5 MPH vehicle speed limit and P151A becomes active, after:– A key cycle or– Vehicle refuel...

PACCAR MX (2004 Emissions) Fault Code: P1524 Engine Oil Pressure – Data Valid but Too Low, Moderately Severe SET CONDITIONS:The PCI ECU (D420) detects that the oil pressure is too low. DIAGNOSTIC CONDITION:This diagnostic runs when the engine has been running for more than eight seconds. CORRESPONDING OBD READINESS MONITOR:None 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 diagnostic conditions and set conditions.3. Did the DTC come back?– No, repair successful– Yes, repair unsuccessful POSSIBLE CAUSES:1. Oil level too low2. Very...

PACCAR MX (2004 Emissions) Fault Code: P1526 CAN Communication – Message (CM1) Out of Range, Requested Percent Fan Speed from Vehicle Control System SET CONDITIONS:This DTC is set when a 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....