Cummins ISC CM2150 (2007-09) Fault Code: 2556 PID: SID 070 SPN: 729 FMI: 4 Intake Air Heater 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the intake air heater 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 shorted intake air heater relay
2)Intake air heater relay supply wire shorted to ground.

Possible repairs:

1)Replace the intake air heater relay.
2)Repair or replace the OEM harness.
3)Replace the ECM.

Categories Cumminz, DTC TRUCKS, ISC CM2150 (2007-09) Tags 070, 1, 2007-09, Air, at, Below, Circuit, Circuit., CM2150, Code2556, Cummins, Detected, Fault, FMI4, Heater, Intake, ISC, Low, Normal, or, PIDSID, Shorted, signal, Source, SPN729, the, to, Voltage

2021 VOLVO PREMIUM TECH TOOL PTT V2.8.21 VCADS+DEVELOPER TOOL+APCI 2021/09 ( 1 PC )
Trucks software $85.00
Rated 0 out of 5
premium volvo tech tool update 2.8.150 diagnostic software 1pc
Trucks software $150.00
Rated 0 out of 5
Detroit Diesel Diagnostic Link DDDL 8.0 PRO PROFESSIONAL Software trucks
Detroit $25.00
Rated 0 out of 5
PF Diagnose 2.0.2.23 Diagnostics Software 2013 – Full Heavy & Medium Duty with OBDII Support – Online Installation Service
PF Diagnose $60.00
Rated 0 out of 5
Hino DX3 2025 Diagnostic Software
Hino $95.00
Rated 0 out of 5

Meritor Wabco Tool Box 12.9.1
Trucks software $35.00
Rated 0 out of 5
volvo delete files 2023 33,46 GB
Trucks software $300.00
Rated 0 out of 5
International Truck ISIS – Oncommand Service Information Q4.2020 [04.2020]
Navistar $85.00
Rated 0 out of 5
Isuzu G-IDSS Global 2024 Diagnostic Software
ISUZU $220.00
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
Volvo Intermediate Storage File Encryptor/Decryptor (Editor) VISFED 0.3.2
Trucks software $35.00
Rated 0 out of 5
DPF EGR SCR BAC ERG Delete & Flash CAAT Cummings Detroit Dodge Mack Volvo Collection of DELETE files
CAT $200.00
Rated 0 out of 5
VOLVO PROSIS 2023 ( 11.2022 )
Trucks software $96.00
Rated 0 out of 5
NAVISTAR DLB 2024 Diamond Logic Builder
Navistar $100.00
Rated 0 out of 5
CAT ET Electronic Technician 2018C
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
Allison DOC 2019 PC software + GEN5 2019 truck
Allison $40.00
Rated 0 out of 5
AGCO EDT 2023 Electronic Diagnostic Tool 1.125
AGCO $120.00
Rated 0 out of 5
Allison DOC Premium 2023
Allison $96.00
Rated 0 out of 5
Navistar Engine Diagnostics (NEDS) 2023
Navistar $96.00
Rated 0 out of 5

SERVICE MANUAL Bendix EC-30
BENDIX $17.00
Rated 0 out of 5
SERVICE MANUAL FUSO CANTER 2010
FUSO $54.00
Rated 0 out of 5
SERVICE MANUAL DETROIT Earings – Technicians Guide
DETROIT $18.00
Rated 0 out of 5
SERVICE MANUAL HINO FD.FE.FF.SG 2001
HINO $35.00
Rated 0 out of 5
DETROIT DT12 TRANSMISSIONS – Service manual – PDF
DETROIT $55.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 753 sms
BOBCAT $57.00
Rated 0 out of 5
SERVICE MANUAL BOBCAT 630-631-632 sms
BOBCAT $45.00
Rated 0 out of 5
SERVICE MANUAL Fuso FK & FM Series 1986-1987
FUSO $23.00
Rated 0 out of 5
SERVICE MANUAL HINO FD.FE.FF.SG 2016
HINO $40.00
Rated 0 out of 5
SERVICE MANUAL DETROIT DIESEL V-71
DETROIT $38.00
Rated 0 out of 5