CUMMINS ISM – DPF Delete Shop https://dpf-deleteshop.com Tuning Diesel Thu, 19 Dec 2024 05:57:40 +0000 en-US hourly 1 https://dpf-deleteshop.com/wp-content/uploads/2023/01/cropped-DPFDELETESHOPLOGO2-32x32.png CUMMINS ISM – DPF Delete Shop https://dpf-deleteshop.com 32 32 Cummins ISM CM876 (2007-09) Fauld Code: 2961 PID: 412 SPN: 412 https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2961-pid-412-spn-412/ https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2961-pid-412-spn-412/#respond Thu, 19 Dec 2024 05:55:55 +0000 https://dpf-deleteshop.com/?p=4988

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2961
PID: 412
SPN: 412
FMI: 0

Description: EGR Temperature – Data Valid But Above Normal Operating Range – Least Severe
Level. EGR temperature has exceeded the engine protection limit.
Troubleshooting:
Verify the 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)Malfunctioning EGR differential pressure tubes
2)A damaged EGR valve
3)A stuck open turbocharger control valve
4)A low reading from the EGR differential pressure sensor
5)A low reading for the EGR valve position sensor
6)High exhaust temperatures
7)Low coolant level
8)High coolant temperature
9)An incorrect coolant/water mixture
10)A stuck closed variable geometry turbocharger
11)A fouled EGR cooler.
NOTE: This fault code will most likely not be active with no load in the shop. The engine must
be loaded to trigger this fault code.
Possible repairs:
1)Replace the exhaust gas recirculation temperature sensor.
2)Drain the coolant and fill the cooling system with the proper mixture.
3)Tighten or replace the exhaust gas recirculation differential pressure sensor tubes.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2962
PID: 412
SPN: 412
FMI: 0

Description: Exhaust Gas Recirculation Temperature – Data Valid but Above Normal
Operational Range – Moderately Severe Level. EGR temperature has exceeded the engine
protection limit.
Troubleshooting:
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 fouled EGR cooler.
2)Failed EGR differential pressure tubes.
3)A failed EGR valve.
4)A stuck open turbocharger control valve.
5)A low reading from the EGR differential pressure sensor.
6)A low reading for the EGR valve position sensor.
7)High exhaust temperatures.
8)Low coolant level.
9)High coolant temperature.
10)An incorrect coolant/water mixture.
11)A stuck closed variable geometry turbocharger.
Note: This fault code will most likely not be active with no load in the shop. The engine must be
loaded to trigger this fault code.
Possible repairs:
1)Replace the EGR temperature sensor.
2)Drain the coolant and refill the cooling system with the proper mixture.
3)Tighten or replace the EGR differential pressure sensor tubes.
4)Clear the debris or replace the EGR differential pressure tube.

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 2964
PID: P105
SPN: 105
FMI: 0/16

Description: Intake Manifold 1 Temperature – Data Valid But Above Normal Operating Range –
Least Severe Level. Intake manifold air temperature signal indicates intake manifold air
temperature is above engine protection warning limit.
Troubleshooting:
The intake manifold air temperature sensor measures the temperature of the charge air (fresh
air compressed by the turbocharger, cooled by the charge air cooler, and mixed with EGR) as it
passes through the intake manifold. This fault code is activated if the intake manifold air
temperature is above 121°C [250° F] for five seconds.
NOTE: Prior to running the INSITE™ electronic service tool EGR Valve and EGR
Valve/Turbocharger Operational Test, the ECM Calibration Software Phase could possibly
need to be updated to the latest Software Phase. The ECM Calibration Phase Software can be
checked in INSITE™ electronic service tool, under ‘Features and Parameters’. Expand the
selection for ‘System ID and Dataplate and go to ‘Calibration Information’. If the Software
Phase is earlier than shown below, calibrate the ECM using the January 2006 INCAL™ CDROM,
or later. Engines with the Software Phase listed below or later do not require a
calibration.
ISX engines with CM870 (engines built after January 2004) require Software Phase 06050302.
ISX engines with CM870 (engines built before January 2004) require no changes at this time.
This is a warrantable calibration change.
Possible causes:
1)Plugged charge air cooler fins
2)Restricted airflow through the charge air cooler
3)Damaged EGR differential pressure sensor, or leaks in sensor tubes
4)Undersized charge air cooler
5)High turbocharger compressor outlet temperature
6)Fouled EGR cooler
7)Stuck EGR valve
8)Sensor malfunction.
Possible repairs:
1)Replace the intake manifold temperature sensor.

]]> https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2961-pid-412-spn-412/feed/ 0 Cummins ISM CM875 (2003-06) Fauld Code: 2359 PID: P411 SPN: 411 FMI: 0/16 https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-2359-pid-p411-spn-411-fmi-0-16/ https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-2359-pid-p411-spn-411-fmi-0-16/#respond Thu, 19 Dec 2024 05:42:45 +0000 https://dpf-deleteshop.com/?p=4983

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 2359
PID: P411
SPN: 411
FMI: 0/16

Description: EGR Differential Pressure Sensor – Data Valid but Above Normal Operating Range
– Moderately Severe Level. EGR differential pressure sensor failed automatic calibration
procedure or EGR differential pressure reading not valid for engine operating conditions.
Troubleshooting:
Update: Prior to running INSITE™ electronic service tool, verify that the ECM has the correct
Calibration Software Phase. There have been changes in the calibrations that reduce false
occurrences of the fault code and also affect the tolerable sensor range.
The ECM Calibration Software Phase can be checked in INSITE™ electronic service tool,
under Features and Parameters.
1)Expand the selection for System ID and Dataplate, then go to Calibration Information.
2)ISX Engines with CM870 built during and after January 2004 require software phase
06050402 or greater from the February 2007 INCAL™ DVD or newer.
3)ISX Engines with CM870 built before January 2004 require software phase 05050000 or
greater from the April 2007 INCAL™ DVD or newer.
The ECM Calibration Revision History can be found at:
http://insite.cummins.com/insite/tools/incal/index.html
This is a warrantable calibration change.
Possible causes:
1)A plugged or leaking low or high EGR differential pressure tubes
2)A damaged EGR differential pressure sensor
3)A stuck open or closed EGR valve
4)A damaged EGR connection tube hose
5)A leak in the EGR connection tube hoses or tubes
6)A damaged variable geometry turbocharger
7)A damaged variable geometry actuator
8)A damaged turbocharger control valve
9)A damaged turbocharger control shutoff valve
10)A plugged turbocharger control shutoff valve filter
11)A leak in the air line supplying air pressure to the turbocharger control shutoff valve,
turbocharger control valve, or variable geometry actuator
12)Incorrectly installed EGR differential pressure tubes
13)Incorrectly installed EGR differential pressure sensor
14)Expanded exhaust gases trapped in differential pressure tube
15)A damaged EGR cooler that allows coolant into the crossover tube and EGR differential
pressure sensor tubes.
If Fault Code 2359 is active after a key cycle and the engine is not running, it will be set
inactive only if the following conditions are met:
1)Engine coolant temperature is greater than 67°C [153°F]
2)Intake manifold air temperature is greater than 7°C [45°F]
3)Keyswitch transitions from ON to OFF for 30 seconds
4)EGR differential pressure sensor reading is within a set calibration threshold near zero.
Possible repairs:
1)Tighten any loose connections and clean the battery terminals.
2)Tighten the fittings, replace the EGR differential pressure tube and the adapter, or correct the
exhaust leaks.
3)Install the EGR differential pressure tubes correctly.
4)If coolant is found in the EGR differential pressure sensor tubes, they must be replaced.
5)Install the EGR differential pressure sensor correctly.
6)Tighten the differential pressure tube fittings.
7)Replace the EGR valve.
8)Repair leaks.
9)Replace the turbocharger control valve.
10)Replace the turbocharger assembly.
11)Replace the turbocharger actuator.
12)Repair the air supply from the OEM air tanks.
13)Replace the turbocharger.

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 2376
PID: P412
SPN: 412
FMI: 4/4

Description: Recirculated Exhaust Gas Temperature Sensor Circuit – Voltage Below Normal or
Shorted to Low Source. Low signal voltage detected at EGR temperature circuit.
Troubleshooting:
Beginning with ESN 14039654, the temperature sensor return circuit was separated from the
pressure sensor return circuit. For ESNs prior to this and with engine wiring harness Part
Number 3682854, refer to the Common Pressure/Temperature Sensor Return Circuit above.
For this ESN and greater or for any other engine wiring harness part number, refer to the
Separate Pressure/Temperature Sensor Return Circuit above.
This fault code is set active if the sensor signal voltage is below the normal operating range for
the sensor and the ECM has commanded the EGR valve open. This fault code will not be set
active if the ECM has commanded the EGR valve closed. However, once the fault code is set,
it will remain active independent of whether the EGR valve is open or closed.
The EGR temperature sensor shares return wires in the engine harness with other sensors. A
shorted return can cause multiple fault codes to be active. Before troubleshooting Fault Code
2376, check for multiple fault codes.
Possible causes:
1)Signal shorted to ground in the harness or ECM
2)Signal shorted to return or ground in the sensor.
Possible repairs:
1)Replace the EGR temperature sensor.
2)Replace the ECM.
3)Repair or replace the engine harness.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2754
PID: 81
SPN: 81
FMI: 16

Description: Engine Particulate Filter Inlet Pressure – Data Valid but Above Normal Operational
Range – Moderately Severe Level. Excessive black smoke has been detected exiting the
engine and entering the aftertreatment diesel particulate filter.
Troubleshooting:
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)Boost leaks in the charge air cooler plumbing
2)A malfunctioning variable geometry turbocharger (VGT)
3)A malfunctioning exhaust gas recirculation (EGR) valve
4)A malfunctioning in-range EGR differential pressure sensor
5)A malfunctioning in-range boost pressure sensor
6)A malfunctioning in-range barometric pressure sensor
7)A cylinder misfire or overfueling.
Possible repairs:
1)Repair or replace the leaking component.
2)Clean or replace the charge air cooler.
3)Replace the intake manifold pressure/temperature sensor.
4)Replace the barometric pressure sensor
5)Tighten the fittings, or replace the EGR differential pressure tube.
6)Replace the EGR differential pressure sensor adapter.
7)lace the injector if necessary.

]]> https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-2359-pid-p411-spn-411-fmi-0-16/feed/ 0 Cummins ISM CM876 (2007-09) Fauld Code: 2322 PID: SID 64 SPN: 723 FMI: 2 https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2322-pid-sid-64-spn-723-fmi-2/ https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2322-pid-sid-64-spn-723-fmi-2/#respond Thu, 19 Dec 2024 05:33:51 +0000 https://dpf-deleteshop.com/?p=4978

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2322
PID: SID 64
SPN: 723
FMI: 2

Description: Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect.
Camshaft engine speed sensor intermittent synchronization.
Troubleshooting:
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, calibrate the ECM.
During engine operation, the ECM monitors the secondary speed sensor (camshaft speed
sensor) signal. Fault Code 778 will become active and light the yellow lamp if the signal from
the secondary speed sensor is not present or degraded for more than 3 continuous seconds. If
over a period of time the ECM detects several incidents of a loss of the secondary speed
sensor signal, but the signal loss is short in duration, this fault code will become active. Since
the secondary engine speed signal is not used for normal engine operation, a vehicle operator
should not notice any symptoms related to this problem.
This fault code becomes active whenever the ECM detects a persistent loss of the secondary
engine speed sensor signal over a short period of time.
This fault becomes inactive at each key ON or if the ECM does not detect a loss of the
secondary engine speed sensor signal for at least 20 minutes.
Failures that can cause this fault:
1)Intermittent loss of primary speed sensor signal; the most likely cause is an intermittent open
or short circuit that can be experienced with speed sensor connector problems.
2)Sensor air gap that is marginally too small or too large, or target wheel exhibits excessive
runout.
Actions to take if this fault is intermittent:
1)Look for intermittent engine harness connections in the secondary engine speed sensor
circuit.
2)Look for loose connections at the ECM connector where the pins can not be locked into the
socket.
3)Look for places where the engine harness has worn into a nearby component causing an
intermittent short circuit.
4)Look for pin wear at the speed sensor.
5)Inspect the target wheel for damage.
Possible repairs:
1)Repair or replace the engine harness.
2)Replace or shim the sensor if air gap is out of specification. If the target runout is excessive,
replace the target.
3)Replace the engine camshaft speed/position sensor.

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 2346
PID: N/A
SPN: 2789
FMI: 0/15

Description: Turbocharger Turbine Intake Temperature – Data Valid But Above Normal
Operating Range – Least Severe Level. Turbocharger turbine intake temperature has exceeded
the engine protection limit.
Troubleshooting:
The most common cause of this fault code is low boost. Low boost can be caused by several
factors: leaking charge air cooler, loose charge air cooler clamps, malfunctioning components,
(including charge air cooler piping or hoses), intake manifold pressure sensor, variable
geometry turbocharger, turbocharger control valve, or turbocharger control shutoff valve.
NOTE: Prior to running INSITE™ electronic service tool EGR valve and EGR
valve/turbocharger operational test, the ECM Calibration software phase could possibly need
to be updated to the latest software phase. The ECM calibration phase software can be
checked in INSITE™ electronic service tool, under ‘Features and Parameters’. Expand the
selection for ‘System ID and Dataplate’ and go to ‘Calibration Information’. If the software
phase is earlier than shown below, recalibrate the ECM using the January 2006 INCAL™ CDROM,
or later. Engines with the software phase listed below or later do not require a
recalibration.
ISX engines with CM870 (engines built after January 2004) require software phase 06050402.
ISX engines with CM870 (engines built before January 2004) require software phase
05050000.
This is a warrantable calibration change.
This fault code can also be caused be a Turbocharger Fuel Control (TFC) derate which can be
viewed in INSITE™ electronic service tool, under the User Fueling State. TFC derates can be
caused by several factors: high exhaust temperatures, high turbocharger compressor inlet
temperatures, and high turbocharger compressor outlet temperatures.
NOTE: The engine must be loaded to trip this fault code and to determine if the problem has
been found and fixed. It is possible to cause the fault code to log when the engine is placed on
a dynamometer. The fault code will trip because of the stationary nature and high temperatures
encountered on the dynamometer.
Possible repair:
1)Use the INCAL™ Calibration DVD-ROM with the proper calibration software phase to
calibrate the ECM.
2)The engine power output was derated to limit the exhaust temperatures. This is normal
operation. No repairs are necessary.
3)Repair air leaks.
4)Replace the turbocharger assembly.
5)Replace the turbocharger control valve.
6)Repair the air supply from the OEM air tanks.
7)Replace the turbocharger control shutoff valve filter.
8)Replace the turbocharger control shutoff valve.
9)Replace the variable geometry turbocharger.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2357
PID: SID 146
SPN: 2791
FMI: 7

Description: EGR Valve Control Circuit – Mechanical System Not Responding Properly or Out
of Adjustment. The EGR motor has exceeded the duty cycle limit, indicating a stuck open EGR
valve.
Troubleshooting:
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.
This fault code is triggered when the EGR valve motor is unable to move the EGR valve in the
open position. This is normally caused by a restriction in the EGR valve not allowing the EGR
valve to move to the commanded position.
The fault code will be inactive at key-on. It will only go active if the EGR valve is commanded
open and the EGR valve is unable to move to the commanded position.
The ECM calibration contains an automatic EGR valve override test. Thirty seconds after
turning the keyswitch on, the EGR valve all be commanded open to 60 percent and will be held
in this position for 1 minute and then it will be commanded to 0 percent open. Turn the
keyswitch off for 20 seconds and then turn the keyswitch on and read the fault codes. If Fault
Code 1896 is active, this indicates that the EGR valve is stuck in the open position.
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. Perform the Snap Acceleration Test to check for a damaged diesel particulate
filter.
Possible repairs:
1)Replace the EGR valve motor.
2)Replace the EGR valve.
3)Replace the damaged aftertreatment component

]]> https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-2322-pid-sid-64-spn-723-fmi-2/feed/ 0 CUMMINS ISM CM876 (2007-09) Fauld Code: 1935 PID: SID 146 SPN: 2791 FMI: 11 https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-1935-pid-sid-146-spn-2791-fmi-11/ https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-1935-pid-sid-146-spn-2791-fmi-11/#respond Mon, 16 Dec 2024 21:14:28 +0000 https://dpf-deleteshop.com/?p=4972

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 1935
PID: SID 146
SPN: 2791
FMI: 11

Description: EGR Actuator Driver Circuit – Root Cause Not Known. Intermittent communication
between the smart EGR valve controller and the ECM has been detected.
Troubleshooting:
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.
This fault code is logged when the EGR valve controller did not receive valid J1939 commands
from the primary engine ECM. Intermittent J1939 datalink connections or interference on the
J1939 network are possible causes of this fault code. Also check for intermittent power supply
and ground connections to the EGR valve controller.
Possible repairs:
1)Repair or replace the engine harness.
2)Replace the EGR valve motor.
3)Replace the ECM.

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 2215
PID: P094
SPN: 94
FMI: 1/18

Description: Fuel Pump Delivery Pressure – Data Valid But Below Normal Operating Range –
Moderately Severe Level. Low fuel pressure has been detected by the ECM.
Troubleshooting:
Verify the electronic control module (ECM) calibration is correct.
It is possible to swap the connections between the aftertreatment fuel pressure sensor and the
fuel delivery pressure sensor. If this occurs, Fault Code 2215 will intermittently go active and
the engine will run rough and will surge at low idle. If these symptoms are present, make sure
the fuel pressure connections are connected properly.
The fuel pressure is monitored by the electronic control module (ECM). If the rail fuel pressure
is lower than an acceptable level for given engine operating conditions, the fault code is
logged.
Possible causes:
1)A damaged or sticking drain-back valve located in the fuel supply circuit in the integrated fuel
system module (IFSM) which is located directly above the fuel lift pump.
Possible repairs:
1)Properly connect the aftertreatment fuel pressure sensor and fuel delivery pressure sensor
wiring harness connections.
2)Prime the fuel system.
3)Fill the fuel tanks.
4)Repair or replace the fuel lift pump.
5)Repair or replace the fuel shutoff valve.
6)Replace the 1724 kPa [250 psi] regulator.
7)Use the following procedure in the Signature™, ISX, and QSX15 Service Manual, Bulletin
3666239 for repair or replacement of the fuel pump (gear pump).
8)Locate and repair the source of the air leak by checking all the OEM supply lines and fittings,
suction-side fuel filter head, fuel tank stand pipes, ECM cooling plate, and ECM cooling plate
fuel supply and return lines.
9)Replace the suction-side fuel filter or repair the cause of high inlet restriction.
10)Replace the pressure fuel filter.
11)Replace the regulator.
12)For ISX CM871 and ISM CM876 engines, use the following procedure for replacement of
the rail fuel pressure sensor.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 2274
PID: 411
SPN: 411
FMI: 4

Description: Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Below
Normal, or Shorted to Low Source. Low signal voltage detected at the EGR differential
pressure sensor circuit.
Troubleshooting:
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 signal circuit open or shorted to ground in the engine harness or sensor.
2)A supply wire open or shorted to ground.
3)A malfunctioning EGR differential pressure sensor.
Possible repairs:
1)Replace the EGR valve delta pressure sensor.
2)Replace the ECM.
3)Repair or replace the engine harness.

]]> https://dpf-deleteshop.com/cummins-ism-cm876-2007-09-fauld-code-1935-pid-sid-146-spn-2791-fmi-11/feed/ 0 CUMMINS ISM CM875 (2003-06) Fauld Code: 197 PID: P111 SPN: 111 FMI: 1/18 https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-197-pid-p111-spn-111-fmi-1-18/ https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-197-pid-p111-spn-111-fmi-1-18/#respond Mon, 16 Dec 2024 20:58:33 +0000 https://dpf-deleteshop.com/?p=4967

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 197
PID: P111
SPN: 111
FMI: 1/18

Description: Coolant Level – Data Valid But Below Normal Operating Range – Moderately
Severe Level. Low engine coolant level detected.
Troubleshooting:
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.
If this fault code is active and the coolant level is not low, disconnect the coolant level sensor
and check the connectors for traces of coolant. If coolant is found at the electrical connectors,
the sensor has malfunctioned and must be replaced.
For intermittent power supply and datalink communication issues with Aftertreatment
Components, it is highly recommended that the OEM Power Distribution Center fuses and
relays be thoroughly checked for loose, missing or intermittent connections.
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)If necessary, calibrate the ECM.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 1893
PID: SID 324
SPN: 3251
FMI: 2

Description: EGR Valve Control Circuit – Abnormal Update Rate. No communications or invalid
data transfer rate detected on the SAE J1939 data link between the ECM and the smart EGR
valve.
Troubleshooting:
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, calibrate the ECM. For ISX and ISM engines, see the following procedure in the
corresponding Troubleshooting and Repair Manual for the engine being serviced.
This fault code is logged when the primary engine ECM did not receive valid SAE J1939
information from the EGR valve.
Possible causes of this fault code include:
1)The EGR valve is not receiving power from the ECM. This could be caused by an open
circuit in the power supply wire or low voltage supplied by the primary engine ECM.
2)Open return circuit on the EGR valve circuit between the engine ECM and the EGR valve.
3)Open or short circuit on the SAE J1939 data link circuit between the ECM and the EGR
valve.
4)Intermittent communications between the EGR valve and the primary engine ECM on the
SAE J1939 data link.
5)Malfunctioning termination resistors in the engine data link harness.
6)A malfunctioning engine ECM.
7)A malfunctioning EGR valve.
Possible repairs:
1)Clean the connector and pins.
2)Tighten the ground connection.
3)Replace the engine harness.
4)Replace the ECM.
5)Replace the SAE J1939 termination resistor.
6)Repair or replace the engine harness.
7)Replace the EGR valve.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 1899
PID: 411
SPN: 411
FMI: 1

Description: Exhaust Gas Recirculation Valve Delta Pressure – Data Valid But Below Normal
Operating Range – Moderately Severe Level. The EGR differential pressure sensor has
detected low EGR gas flow or the EGR differential pressure reading is not valid for engine
operating conditions.
Troubleshooting:
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, calibrate the ECM.
This diagnostic checks the reading of the EGR differential pressure sensor when the EGR
valve is open. Since the EGR valve is open, the reading of the EGR differential pressure must
be greater than 0. If the ECM detects a reading lower than expected with the EGR valve open,
this fault code is logged.
Possible causes:
1)A damaged EGR differential pressure sensor.
2)A leaking low or high EGR differential pressure tube.
3)A stuck closed EGR valve.
4)A plugged or restricted EGR cooler.
Note: Do not replace the EGR differential pressure tubes for plugging unless Fault Code 2774
is active.
Possible repairs:
1)Remove and clean both EGR differential pressure tubes. Then install and tighten the fittings,
or replace the EGR differential pressure tubes.
2)Replace the EGR differential pressure sensor adapter.
3)Clear the restriction or replace the EGR cooler.
4)Clean the connector and pins.
5)Replace the EGR delta pressure sensor.
6)Repair or replace the engine harness.
7)Replace the ECM.
8)Clean the EGR cooler, if possible.
9)If necessary, calibrate the ECM.

]]> https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-197-pid-p111-spn-111-fmi-1-18/feed/ 0 Cummins ISM CM875 (2003-06) Fauld Code: 155 PID: P105 SPN: 105 https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-155-pid-p105-spn-105/ https://dpf-deleteshop.com/cummins-ism-cm875-2003-06-fauld-code-155-pid-p105-spn-105/#respond Mon, 16 Dec 2024 20:44:22 +0000 https://dpf-deleteshop.com/?p=4963

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 155
PID: P105
SPN: 105
FMI: 0/0

Description: Intake Manifold 1 Temperature – Data Valid But Above Normal Operating Range –
Most Severe Level. Intake manifold air temperature signal indicates intake manifold air
temperature above engine protection critical limit.
Troubleshooting:
The intake manifold air temperature sensor measures the temperature of the charge air (fresh
air compressed by the turbocharger, cooled by the charge air cooler, and mixed with EGR) as it
passes through the intake manifold. This fault code is activated if the intake manifold air
temperature is above 132°C [270°F].
NOTE: Prior to running the INSITE™ electronic service tool EGR Valve and EGR
Valve/Turbocharger Operational Test, the ECM Calibration Software Phase could possibly
need to be updated to the latest Software Phase. The ECM Calibration Phase Software can be
checked in INSITE™ electronic service tool, under ‘Features and Parameters’. Expand the
selection for ‘System ID and Dataplate’ and go to ‘Calibration Information’. If the Software
Phase is earlier than shown below, recalibrate the ECM using the January 2006 INCAL™ CDROM,
or later. Engines with the Software Phase listed below or later do not require a
recalibration.
ISX engines with CM870 (engines built after January 2004) require Software Phase 06050302.
ISX engines with CM870 (engines built before January 2004) require no changes at this time.
This is a warrantable calibration change.
Possible causes:
1)Plugged charge air cooler fins
2)Restricted airflow through the charge air cooler
3)Failed EGR differential pressure sensor, or leaks in sensor tubes
4)Undersized charge air cooler
5)High turbocharger compressor outlet temperature
6)Fouled EGR cooler
7)Stuck EGR valve.
Possible repair:
1)Replace the charge air cooler with the correct size unit.
2)Clean or replace the EGR differential pressure sensor adapter.
3)epair or replace the intake manifold air temperature sensor.
4)Replace the EGR Cooler.

Make: Cummins
Engine: ISM CM875 (2003-06)

Fauld Code: 187
PID: S232
SPN: 1080
FMI: 4/4

Description: Sensor Supply 2 Circuit – Voltage Below Normal or Shorted to Low Source. Low
voltage detected at the sensor supply number 2 circuit.
Troubleshooting:
Low voltage on the +5 volt supply line can be caused by a short circuit to ground in a supply
line, a short circuit between a supply line and a return line, a malfunctioning sensor, or a
malfunctioning ECM power supply.
During the fault code response test outlined for each sensor connected to sensor supply
number 2, Fault Code 187 must be active before unplugging each sensor. If the fault code is
not active, but can be easily duplicated by operating the engine, the following can be
performed:
Operate the engine under the conditions that will cause Fault Code 187 to become active, even
if it logs for a short period of time. Unplug one sensor at a time until Fault Code 187 stops
logging under the test conditions. Each sensor can be unplugged with the engine running.
Note: The engine may not start if the camshaft position sensor is unplugged.
Possible repair:
1)Replace the camshaft position sensor.
2)Replace the intake manifold pressure/temperature sensor.
3)Replace the EGR valve position sensor.
4)Replace the EGR differential pressure sensor.
5)Replace the rail fuel pressure sensor.
6)Replace the exhaust gas pressure sensor.
7)Repair or replace the engine harness.
8)Replace ECM.

Make: Cummins
Engine: ISM CM876 (2007-09)

Fauld Code: 1866
PID: 411
SPN: 411
FMI: 2

Description: Exhaust Gas Recirculation Valve Delta Pressure – Data Erratic, Intermittent, or
Incorrect. An error in the EGR delta pressure signal was detected at initial key-on or the sensor
failed the autozero test.
Troubleshooting:
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.
This check is only performed at keyswitch OFF, during the ECM powerdown. During this
diagnostic check, the ECM monitors the value of the EGR differential pressure sensor. If this
value is outside of a specified range, Fault Code 1866 is set active.
Possible causes:
1)A damaged EGR differential pressure sensor.
2)High resistance in the wiring harness on the signal or return wire.
Possible repairs:
1)Remove and clean both EGR differential pressure tubes. Install and tighten the fittings, or
replace the EGR differential pressure tubes.
2)Clean the connector and pins.
3)Repair or replace the engine harness.
4)Replace the ECM.

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