Paccar

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level.

This fault code is logged when the ECM has detected a high temperature condition in the aftertreatment system and active regeneration of the aftertreatment diesel particulate filter is occurring. The fault code indicates that a secondary fuel source is entering the aftertreatment system and is creating a temperature increase across the aftertreatment diesel oxidation catalyst and/or aftertreatment diesel particulate filter.

Possible causes:

1)Excessive engine oil or diesel fuel being introduced into the exhaust system from the engine
2)A damaged engine fuel injector causing unburned diesel fuel to enter the exhaust system
3)The aftertreatment diesel particulate filter inlet temperature sensor failed in-range
4)The aftertreatment diesel particulate filter outlet temperature sensor failed in-range
5)An in-range engine sensor malfunction has occurred, causing excessive fuel to enter the exhaust system.

The aftertreatment system must be inspected after making the appropriate repair outlined in this fault code troubleshooting tree. Progressive damage to the aftertreatment system may have occurred. Remove the exhaust aftertreatment system from the vehicle to inspect it for potential damage and reuse. For ISB CM2150 engines, use the following procedure in the ISB CM2150 Service Manual, Bulletin 4021578. For ISC and ISL CM2150 engines, use the following procedure in the ISC and ISL CM2150 Service Manual, Bulletin 4021569.

Possible repairs:

1)If no short is found, replace the temperature sensor that is reading higher or lower than the other sensors.
2)Replace the injector
3)Repair or replace any components that caused the engine oil or diesel fuel contamination.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe Level. Engine exhaust gas temperatures entering the aftertreatment system are above the engine protection limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1962 PID: SID 027 SPN: 641 FMI: 0 VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High Internal VGT actuator temperature has been detected.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1943 PID: SPN: 3555 FMI: 1 Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level. Engine torque has been reduced because the vehicle was operating at a high altitude condition.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1942 PID: 101 SPN: 101 FMI: 2 Crankcase Pressure – Data Erratic, Intermittent, or Incorrect. The ECM has detected that the crankcase pressure signal is not changing with engine operating conditions.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1938 PID: SPN: 3597 FMI: 1 ECU Power Output Supply Voltage 1 – Data Valid but Below Normal Operational Range – Moderately Severe Level. Low battery voltage detected by the VGT actuator.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 197 PID: 111 SPN: 111 FMI: 1 Coolant Level – Data Valid but Below Normal Operating Range – Moderately Severe Level. Low engine coolant level detected.

Verify the engine control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM.

This fault code goes active when the coolant level inside the radiator top tank or surge tank drops below the sensor level. Fill the top tank with coolant.

Note: It may not be possible to perform an aftertreatment diesel particulate filter (DPF) regeneration while this fault code is active.

Possible repairs:

1)Add coolant to the engine.
2)Replacing the coolant level sensor.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 196 (3 wire sensor) PID: 111 SPN: 111 FMI: 4 Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at engine coolant level circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 196 (2 wire sensor) PID: 111 SPN: 111 FMI: 4 Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the engine coolant level circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 195 (3 wire sensor) PID: 111 SPN: 111 FMI: 3 Coolant Level Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at engine coolant level circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 195 (2 wire sensor) PID: 111 SPN: 111 FMI: 3 Coolant Level Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at engine coolant level circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 155 PID: 105 SPN: 105 FMI: 0 Intake Manifold 1 Temperature – Data Valid but Above Normal Operational Range – Most Severe Level. Intake manifold air temperature signal indicates intake manifold air temperature above engine protection critical limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 154 PID: 105 SPN: 105 FMI: 4 Intake Manifold 1 Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at intake manifold air temperature circuit.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level.

This fault code is logged when the ECM has detected a high temperature condition in the aftertreatment system and active regeneration of the aftertreatment diesel particulate filter is occurring. The fault code indicates that a secondary fuel source is entering the aftertreatment system and is creating a temperature increase across the aftertreatment diesel particulate filter.

Possible causes:

1)Excessive engine oil or diesel fuel being introduced into the exhaust system from the engine
2)A damaged engine fuel injector causing unburned diesel fuel to enter the exhaust system
3)The aftertreatment diesel particulate filter outlet temperature sensor malfunctioned in-range
4)A face plugged aftertreatment diesel oxidation catalyst
5)An in-range engine sensor malfunction has occurred, causing excessive fuel to enter the exhaust system.

The aftertreatment system must be inspected after making the appropriate repair outlined in this fault code troubleshooting tree. Progressive damage to the aftertreatment system may have occurred. Remove the exhaust aftertreatment system from the vehicle to inspect it for potential damaged and reuse. For ISB CM2150 engines, use the following procedure in the ISB CM2150 Service Manual, Bulletin 4021578. For ISC and ISL CM2150 engines, use the following procedure in the ISC and ISL CM2150 Service Manual, Bulletin 4021569.

Possible repairs:

1)If no short is found, replace the temperature sensor that is reading higher or lower than the other sensors.
2)Remove the diesel oxidation catalyst from the vehicle and clean the face.
3)Replace the injector, if necessary.
4)Repair or replace any components that caused the engine oil or diesel fuel contamination.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe Level. Engine exhaust gas temperatures entering the aftertreatment system are above the engine protection limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1962 PID: SID 027 SPN: 641 FMI: 0 VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High Internal VGT actuator temperature has been detected.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1943 PID: SPN: 3555 FMI: 1 Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level. Engine torque has been reduced because the vehicle was operating at a high altitude condition.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1942 PID: 101 SPN: 101 FMI: 2 Crankcase Pressure – Data Erratic, Intermittent, or Incorrect. The ECM has detected that the crankcase pressure signal is not changing with engine operating conditions.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level.

This fault code is logged when the ECM has detected a high temperature condition in the aftertreatment system and active regeneration of the aftertreatment diesel particulate filter is occurring. The fault code indicates that a secondary fuel source is entering the aftertreatment system and is creating a temperature increase across the aftertreatment diesel particulate filter.

Possible causes:

1)Excessive engine oil or diesel fuel being introduced into the exhaust system from the engine
2)A damaged engine fuel injector causing unburned diesel fuel to enter the exhaust system
3)The aftertreatment diesel particulate filter outlet temperature sensor failed in-range
4)An in-range engine sensor malfunction has occurred, causing excessive fuel to enter the exhaust system.

The aftertreatment system must be inspected after making the appropriate repair outlined in this fault code troubleshooting tree. Progressive damage to the aftertreatment system may have occurred. Remove the exhaust aftertreatment system from the vehicle for potential damage and inspect for reuse.

Possible repairs:

1)If no short is found, replace the temperature sensor that is reading higher or lower than the other sensors.
2)Replace the injector, if necessary.
3)Repair or replace any components that caused the engine oil or diesel fuel contamination.
4)If black smoke is present, inspect the aftertreatment system for possible damage.
5)If necessary, calibrate the ECM.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe Level. Engine exhaust gas temperatures entering the aftertreatment system are above the engine protection limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1962 PID: SID 027 SPN: 641 FMI: 0 VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High Internal VGT actuator temperature has been detected.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1943 PID: SPN: 3555 FMI: 1 Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level. Engine torque has been reduced because the vehicle was operating at a high altitude condition.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Possible causes:

1)Crankcase breather filter needs to be replaced.

Possible repairs:

1)Replace the crankcase breather filter.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe Level. Engine exhaust gas temperatures entering the aftertreatment system are above the engine protection limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1962 PID: SID 027 SPN: 641 FMI: 0 VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High Internal VGT actuator temperature has been detected.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 1981 PID: SID 324 SPN: 3926 FMI: 0 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable changes to the calibration stored in the ECM. If necessary, calibrate the ECM.

An engine torque derate for extended EGR valve closed operation exists for this fault code. The engine torque derate for extended EGR valve closed operation operates on a time based system. The time based system will count up anytime a fault code that closes the EGR valve is active. Once the timer reaches 20 hours, an engine torque derate of approximately 15 percent will be applied.

The engine torque derate will be removed as soon as the fault code goes inactive, and the timer will begin to count down. If the fault code reoccurs within the next 20 hours of engine operation, the engine torque derate will immediately be applied, and the timer will then reset to 20 hours. The engine must operate for 20 hours with no active faults that close the EGR valve, for the timer to clear. After the timer has cleared, the engine must then operate for another 20 hours, with an active fault code that closes the EGR valve to apply the derate.

This fault code indicates that the soot load inside the aftertreatment diesel particulate filter has reached the maximum level, soot level stage 4. Regeneration of the aftertreatment diesel particulate filter at this stage is not possible. The aftertreatment diesel particulate filter must be inspected. If it meets the inspection criteria, it can be cleaned using an SPX air pulse cleaning machine (or equivalent). If it does not meet the inspection criteria, it must be replaced.

Possible causes:

1)The aftertreatment diesel particulate filter can be plugged with soot.
2)The engine has been operating in light load conditions that prevent exhaust temperatures from being high enough to actively regenerate the aftertreatment particulate filter.
3)The aftertreatment wiring harness connectors could be connected to the wrong aftertreatment exhaust gas temperature sensors.
4)The aftertreatment wiring harness or aftertreatment exhaust gas temperature sensor connector pin installation could be incorrect.
5)The aftertreatment diesel particulate filter differential pressure sensor has malfunctioned.
6)The aftertreatment diesel particulate filter may have reached the ash cleaning interval.
7)The aftertreatment diesel particulate filter can accumulate an excessive amount of ash in a short time period, due to excessive oil consumption or due to non-combustible elements such as, but not limited to, iron, potassium, or calcium contained in the fuel supply or additives.
8)An engine malfunction that is elevating the engine smoke output.

Possible repairs:

1)Replace the aftertreatment diesel particulate filter.
2)Replace the diesel oxidation catalyst.
3)If no short circuit is found, replace the aftertreatment diesel particulate filter differential pressure sensor.
4)Replace the aftertreatment diesel particulate filter.
5)Replace the diesel oxidation catalyst.
6)Calibrate the ECM with the calibration containing corrections to resolve Fault Code 1981.
7)Replace the six injectors.
8)If necessary, calibrate the ECM.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1966 PID: 326 SPN: 3241 FMI: 0 Aftertreatment Exhaust Gas Temperature 1 – Data Valid But Above Normal Operating Range – Most Severe Level. Engine exhaust gas temperatures entering the aftertreatment system are above the engine protection limits.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 1993 PID: SPN: 3064 FMI: 11 Aftertreatment Particulate Trap Missing – Condition Exists. The aftertreatment diesel particulate filter in the exhaust system is not present.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Possible causes:

1)The aftertreatment differential sensor can be stuck in range
2)The aftertreatment diesel particulate filter has been removed from the vehicle
3)The aftertreatment diesel particulate filter is cracked or broken
4)The aftertreatment diesel particulate filter differential tubes are installed incorrectly, broken, loose, or have been tampered with
5)The aftertreatment diesel particulate filter differential tubes are installed backwards.

Possible repairs:

1)Replace the differential pressure sensor.
2)Replace the aftertreatment diesel particulate filter differential pressure sensor tubes.
3)Replace the aftertreatment diesel particulate filter differential pressure sensor.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1981 PID: SID 324 SPN: 3926 FMI: 0 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The aftertreatment differential pressure has exceeded the maximum operating limits or the diesel particulate filter is plugged.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1968 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum temperature limit.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2182 PID: SID 79 SPN: 1072 FMI: 3 Engine Brake Actuator Driver 1 Circuit – Voltage Above Normal or Shorted to High Source. High voltage or open circuit detected at the engine brake solenoid number 1 signal circuit.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Possible causes:

1)Open circuit in the engine harness, brake harness, or engine brake solenoids
2)Short to voltage source in the engine harness.
3)Malfunctioning ECM.

Possible repairs:

1)Replace the engine brake solenoid.
2)Replace the ECM.
3)Repair or replace the engine harness.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 1993 PID: SPN: 3064 FMI: 11 Aftertreatment Particulate Trap Missing – Condition Exists. The aftertreatment diesel particulate filter in the exhaust system is not present.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1981 PID: SID 324 SPN: 3926 FMI: 0 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The aftertreatment differential pressure has exceeded the maximum operating limits or the diesel particulate filter is plugged.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1969 PID: SPN: 3249 FMI: 0 Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter inlet temperature sensor reading has exceeded the maximum engine protection temperature limit.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2183 PID: SID 79 SPN: 1072 FMI: 4 Engine Brake Actuator Circuit #1 – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 1 signal circuit.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Possible causes:

1)A short circuit to ground in the engine harness, connector, or engine brake solenoids.

Possible repairs:

1)Replace the engine brake harness.
2)Replace the engine harness.
3)Replace the engine brake solenoid.
4)Replace the ECM.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 2182 PID: SID 79 SPN: 1072 FMI: 3 Engine Brake Actuator Driver 1 Circuit – Voltage Above Normal or Shorted to High Source. High voltage or open circuit detected at the engine brake solenoid number 1 signal circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1993 PID: SPN: 3064 FMI: 11 Aftertreatment Particulate Trap Missing – Condition Exists. The aftertreatment diesel particulate filter in the exhaust system is not present.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1981 PID: SID 324 SPN: 3926 FMI: 0 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The aftertreatment differential pressure has exceeded the maximum operating limits or the diesel particulate filter is plugged.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1972 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum temperature limit.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2185 PID: SID 232 SPN: 3512 FMI: 3 Sensor Supply 4 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at +5 volt sensor supply circuit to the accelerator pedal position sensor.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

Low voltage on the 5 volt supply wire can be caused by a short circuit to ground in the supply wire, a short circuit between the supply wire and return circuit, a failed accelerator, or a failed ECM power supply.

Possible repairs:

1)Repair or replace the OEM harness.
2)Replace the ECM.

PACCAR PX-6 CM2150 (2007-09) Fault Code: 2183 PID: SID 79 SPN: 1072 FMI: 4 Engine Brake Actuator Circuit #1 – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 1 signal circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 2182 PID: SID 79 SPN: 1072 FMI: 3 Engine Brake Actuator Driver 1 Circuit – Voltage Above Normal or Shorted to High Source. High voltage or open circuit detected at the engine brake solenoid number 1 signal circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1993 PID: SPN: 3064 FMI: 11 Aftertreatment Particulate Trap Missing – Condition Exists. The aftertreatment diesel particulate filter in the exhaust system is not present.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1981 PID: SID 324 SPN: 3926 FMI: 0 Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The aftertreatment differential pressure has exceeded the maximum operating limits or the diesel particulate filter is plugged.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1974 PID: 101 SPN: 101 FMI: 0 Crankcase Pressure – Data Valid but Above Normal Operational Range – Least Severe Level. The crankcase breather filter requires maintenance.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1973 PID: SPN: 3245 FMI: 0 Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level. The aftertreatment diesel particulate filter outlet temperature sensor reading has exceeded the maximum engine protection temperature limit.

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