PACCAR PX-8 CM2150 (2007-09) Fault Code: 1843 PID: 101 SPN: 101 FMI: 3 Crankcase Pressure Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the crankcase pressure 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.

The crankcase pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active. Before troubleshooting, check for multiple fault codes.

Possible causes:

1)Open return circuit in the engine harness, connectors, or sensor
2)Signal wire shorted to sensor supply or battery voltage.

Possible repairs:

1)Replace the crankcase pressure sensor.
2)The removal and installation of the connector may correct the problem.
3)Repair or replace the engine harness.
4)Replace the ECM.

Categories DTC TRUCKS, PACCAR, PX-8 CM2150 (2007-09) Tags -, 101, 1843, 2007-09, 3, Above, at, Circuit, Circuit., CM2150, Code, Crankcase, Detected, Fault, FMI, High, Normal, or, PACCAR, PID, Pressure, PX-8, Shorted, signal, Source., SPN, the, to, Voltage

CAT ET Electronic Technician 2019C
CAT $40.00
Rated 0 out of 5
Navistar Engine Diagnostics 2018 NED
Navistar $40.00
Rated 0 out of 5
CAT Engine Reprogramming Tool for flash programming C1.8, C2.4, C3.8 & C3.3B + Guide
CAT $50.00
Rated 0 out of 5
Bendix 6.16 ACom Diagnostics ( bendix software trucks )
Bendix $35.00
Rated 0 out of 5
Cat Factory Password Generator 1.0 2019 WINDOWS 10
CAT $55.00
Rated 0 out of 5

Volvo Intermediate Storage File Encryptor/Decryptor (Editor) VISFED 0.3.2
Trucks software $35.00
Rated 0 out of 5
NAVISTAR ENGINE CYLINDER PERFORMANCE ANALYZER V7.8.8.1
Navistar $52.00
Rated 0 out of 5
Bell Cancomm 5.07.0 diagnostic software
BELL $125.00
Rated 0 out of 5
Diamond Logic Builder DLB 2018
Navistar $40.00
Rated 0 out of 5
Caterpillar CAT ET 2021B Electronic Technician + Factory Password (1PC)
CAT $75.00
Rated 0 out of 5
Hino DX3 2025 Diagnostic Software
Hino $95.00
Rated 0 out of 5
Cumming Caltem 5.9.1 2022 ( 1 PC )
cummisznn $78.00
Rated 0 out of 5
JPRO Diagnostic Software Download 2024
JPRO $100.00
Rated 0 out of 5
Freightliner ServiceLink 4.9.6
Freightliner $30.00
Rated 0 out of 5
Navistar international OnCommand service information 2018 software trucks
Navistar $50.00
Rated 0 out of 5
MANUAL SERVICE DEUTZ AGROTRON 108-118-128
Trucks software $38.00
Rated 0 out of 5
Wabco PIN Code Calculator Diagnostic Software PIN 1 PIN 2
Trucks software $10.00
Rated 0 out of 5
NAVISTAR DLB 2024 Diamond Logic Builder
Navistar $100.00
Rated 0 out of 5
Wabco Diagnostic Software 2021 (Tebs-E 6.01) + PINS
Trucks software $60.00
Rated 0 out of 5
CAT ET 2024 Diagnostic Software for Heavy
CAT $100.00
Rated 0 out of 5

SERVICE MANUALDAF FUSO CANTER 2012-2016
FUSO $23.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 371 SMS
BOBCAT $40.00
Rated 0 out of 5
SERVICE MANUAL Carrie Intregra 20X
CARRIE $20.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 853 sms
BOBCAT $40.00
Rated 0 out of 5
SERVICE MANUAL DD Series (EPA 2007-Current)
DETROIT $35.00
Rated 0 out of 5
SERVICE MANUAL MACK E-TECH
MACK $28.00
Rated 0 out of 5
SERVICE MANUAL International Engines MaxxForce 5
INTERNATIONAL ENGINES $35.00
Rated 0 out of 5
SERVICE MANUAL WTEC 3 Allison Transmission
Allison $18.00
Rated 0 out of 5
SERVICE MANUAL Eaton Fuller – Autoshift, Autoselect Service Manual (TRSM-0050)
EATON $25.00
Rated 0 out of 5
SERVICE MANUAL Carrie Electra NEE-43/44
CARRIE $20.00
Rated 0 out of 5