Cummins ISC CM2150 (2007-09) Fault Code: 334 PID: 110 SPN: 100 FMI: 2 Engine Coolant Temperature – Data Erratic, Intermittent, or Incorrect. The engine coolant temperature reading is not changing with engine operating conditions.

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.

Two different failure modes of the engine coolant temperature sensor can trigger this fault code. Either the sensor is not reading ambient air temperature after an extended period with the engine not running or the engine coolant temperature is not changing with engine operating conditions.

Possible causes:

1)Stuck in-range engine coolant temperature sensor
2)High resistance in the engine coolant temperature sensor signal or return lines.

Possible repairs:

1)Replace the thermostat.
2)Replace the engine coolant temperature sensor.
3)Replace the ECM.
4)Repair or replace the engine harness.

Categories Cumminz, DTC TRUCKS, ISC CM2150 (2007-09) Tags 2007-09, changing, CM2150, Code334, conditions., Coolant, Cummins, Data, Engine, Erratic, Fault, FMI2, Incorrect, Intermittent, is, ISC, Not, Operating, or, PID110, reading, SPN100, Temperature, the, with

Freightliner ServiceLink 4.9.6
Freightliner $30.00
Rated 0 out of 5
PACCAR Electronic Service Analyst 5.4.3.0 SW files 27.03.2021 software trucks
PACCAR $60.00
Rated 0 out of 5
Scania SDP3 2.48.6 Diagnosis & Programming for VCI 3 VCI3 without Dongle
Scania $30.00
Rated 0 out of 5
Nexiq eTechnician 2.0.7447 2020
NEXIQ $55.00
Rated 0 out of 5
International Truck ISIS – Oncommand Service Information Q4.2020 [04.2020]
Navistar $85.00
Rated 0 out of 5

HINO EPC 2018 TRUCKS / BUSES 2018 EPC PARTS CATALOG
Hino $85.00
Rated 0 out of 5
CAT ET 2022A Advanced diagnostic software for Caterpillar equipment
CAT $95.00
Rated 0 out of 5
VOLVO PTT TECH TOOL 2.8.220 2023 Last version 1pc
Trucks software $200.00
Rated 0 out of 5
Diamond Logic Builder DLB 2018
Navistar $40.00
Rated 0 out of 5
Hino DX3 2025 Diagnostic Software
Hino $95.00
Rated 0 out of 5
Freightliner ServiceLink 4.9.6
Freightliner $30.00
Rated 0 out of 5
Wabco PIN Code Calculator Diagnostic Software PIN 1 PIN 2
Trucks software $10.00
Rated 0 out of 5
Nexiq eTechnician 1.3.62 2020 etechnician software
NEXIQ $50.00
Rated 0 out of 5
NEXIQ eTechnician 2.1.7657.26963 + Patch 2020
Allison $60.00
Rated 0 out of 5
Hino DX3 1.22.10 2022 ( 1 PC )
Hino $96.00
Rated 0 out of 5
CAT CDVR PC Software – Caterpillar Digital Voltage Regulator (CDVR) WINDOWS 10
CAT $45.00
Rated 0 out of 5
MAN MANTIS v666 EPC [09.2021] Spare Parts Catalog
MAN $80.00
Rated 0 out of 5

SERVICE MANUAL HINO FD.FE.FF.SG 2002
HINO $37.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 231 SMS
BOBCAT $60.00
Rated 0 out of 5
SERVICE MANUAL HINO FD.FE.FF.SG 2017
HINO $36.00
Rated 0 out of 5
SERVICE MANUAL Detroit Diesel – Series 50 Service Manual (6SE50)
DETROIT $38.00
Rated 0 out of 5
SERVICE MANUAL VOLVO DD12A (1993-1998)
TRUCK MANUALS $38.00
Rated 0 out of 5
SERVICE MANUAL DETROIT DIESEL EPA 07, EPA 10, GHG 14 TROUBLESHOOTING
DETROIT $38.00
Rated 0 out of 5
SERVICE MANUAL DETROIT Diesel-Ash Accumulator Reset (2 02-10 Rev)
DETROIT $15.00
Rated 0 out of 5
SERVICE MANUAL Carrie Supra 422, 522,622, 722, 822,922, 644,744,844, 944 & Supra Multi-Temp
CARRIE $20.00
Rated 0 out of 5
SERVICE MANUAL Carrie Intregra 20X
CARRIE $20.00
Rated 0 out of 5
SERVICE MANUAL Fuso FH Series 1996-2001
FUSO $28.00
Rated 0 out of 5