Cummins ISX CM870 (2003-06) Fault Code: 284 PID: S221 SPN: 1043 FMI: 4/4 Engine Speed Sensor Supply Voltage Circuit – shorted low. Incorrect voltage detected on the ECM voltage supply line to the engine speed sensor.

The ECM monitors the voltage level on the engine speed sensor +5 volt supply circuit. If voltage falls below a calibratible limit then this fault is recorded.

Possible causes:

1) A short circuit to ground in the engine harness, sensor, or ECM.

Possible repairs:

1)Replace the engine speed sensor.
2)Replace the ECM.
3)Replace the engine harness.

Related

Categories Cumminz, DTC TRUCKS, ISX CM870 (2003-06) Tags -, 1043, 2003-06, 284, 4/4, Circuit, CM870, Code, Cummins, Detected, ECM, Engine, Fault, FMI, Incorrect, ISX, Line, low., On, PID, S221, Sensor, sensor., Shorted, Speed, SPN, Supply, the, to, Voltage

Eaton Service Ranger 4 4.2 database 2017
Eaton $50.00
Rated 0 out of 5
Isuzu E-IDSS Diagnostic Service System 04.2022 ( 1 PC )
ISUZU $126.00
Rated 0 out of 5
Navistar Engine Diagnostics (NEDS) Software 2023
Navistar $96.00
Rated 0 out of 5
Perkins SPI2 2018A Dealer Parts and Service
Perkins $50.00
Rated 0 out of 5
JCB ServiceMaster 4 v21.4.2 [05.2021] Diagnostic Software
JCB $85.00
Rated 0 out of 5

ddct Detroit diesel calibration tool (DDCT) v4.5 English Include Calibrations & Metafiles
Detroit $30.00
Rated 0 out of 5
Volvo I-Shift service manual PDF
TRUCK MANUALS $55.00
Rated 0 out of 5
DOWNLOAD Paccar ESA Electronic Service Analyst 5.5.0 Diagnostic Software 2023
PACCAR $96.00
Rated 0 out of 5
CAT ET Electronic Technician 2019C
CAT $40.00
Rated 0 out of 5
Detroit Diesel Diagnostic Link DDDL 8.0 PRO PROFESSIONAL Software trucks
Detroit $25.00
Rated 0 out of 5
HINO EPC 2018 TRUCKS / BUSES 2018 EPC PARTS CATALOG
Hino $85.00
Rated 0 out of 5
Volvo Premium Tech Tool PTT 2.8.130 Diagnostic Software 04.2022 ACPI ( 1 PC )
Trucks software $143.00
Rated 0 out of 5
Cat Factory Password Generator 1.0 2019 WINDOWS 10
CAT $55.00
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
JOHN DEERE SERVICE ADVISOR 5.3.225 DATABASE AG + CF ENGLISH 2023
John Deere $250.00
Rated 0 out of 5
download MANCATS II v14.01 2014 Diagnostic software MAN CATS ( virtual machine )
MAN $75.00
Rated 0 out of 5
JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] EPC
Hitachi $125.00
Rated 0 out of 5
Hino Diagnostic eXplorer 2 – Hino DX2 v1.1.21.4 with keygen unlocked ( Hino trucks )
Hino $60.00
Rated 0 out of 5
AGCO EDT 2023.10 Electronic Diagnostic Tool 1.125
AGCO $120.00
Rated 0 out of 5
CAT SIS caterpillar 2021 Full Service Dealer
CAT $90.00
Rated 0 out of 5

SERVICE MANUAL Fuso FK & FM Series 1996-2001
FUSO $38.00
Rated 0 out of 5
Volvo I-Shift service manual PDF
TRUCK MANUALS $55.00
Rated 0 out of 5
SERVICE MANUAL Carrie Genises TM900 TM1000
CARRIE $28.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 435 SMS
BOBCAT $56.00
Rated 0 out of 5
SERVICE MANUAL EATON Gen 2 – Automated Transmissions
EATON $28.00
Rated 0 out of 5
SERVICE MANUAL Carrie Integra 40 50S
CARRIE $20.00
Rated 0 out of 5
MANUAL SERVICE DEUTZ AGROLUX F50-F60-F70-F80
DEUTZ $25.00
Rated 0 out of 5
SERVICE MANUAL International Engines T444E
INTERNATIONAL ENGINES $25.00
Rated 0 out of 5
SERVICE MANUAL International Engines DT466E & DT530E (1999 & Older)
INTERNATIONAL ENGINES $31.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 863 sms
BOBCAT $62.00
Rated 0 out of 5