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With the assistance of FUSE you can format drives as NTFS using Disk Utility. For Linux Ext2 and Ext3 file systems, you can use the fuse-ext2 module, and then mount Ext2 and Ext3. You need a specific fuse driver for each file system type, as the point of fuse is to have the file system code running in user-land. So any pre-existing kernel driver code, running in kernel-land (ext2, ext3, ext4, xfs.) can't be used 'as-is' by fuse. This is going to be short. I write this tutorial, because a lot of tutorials mention ext4fuse. While it works for some things one experiences quite a few oddities. Examples of problems I experienced: everything has only read permissions it is possible cd into non existing directories things.
From Wikipedia:
In computing, a file system or filesystem (often abbreviated to fs), controls how data is stored and retrieved. Without a file system, information placed in a storage medium would be one large body of data with no way to tell where one piece of information stops and the next begins. A file system separates the data into pieces and gives each piece a name. Each group of data is called a 'file'.
There are many different kinds of file systems. Each one has different structure and logic, properties of speed, flexibility, security, size and more.
Files and directories themselves are placed on top of the file system, therefore it is common to refer to the file/directory structure itself as 'file system'. On GNU/Linux, the Filesystem Hierarchy Standard defines the naming scheme and hierarchy between files and directories themselves.
File systems usually sit on top of hard disk partitions or LVM volumes. In Debian, ext4 is the default file system for new installations.
GNU/Linux can be installed on any filesystem that supports some special constructs (file permissions, symbolic links and device files).
Many file systems are journaling, meaning they are able to prevent data loss on system crashes or power failures.
Contents
Mounting a filesystem
In GNU/Linux the contents of a filesystem can be made available under a directory, by mounting the filesystem over the directory. Here are some ways to mount a filesystem:
The mount command. For example mount /dev/sdd1 /mn/ would make contents of the first partition of the /dev/sdd disk device, available in the /mnt/ directory.
Editing the fstab file
Filesystems available in Debian Linux kernel
Note0: Debian HURD and Debian kFreeBSD have other file systems.
Note1: the Features list are incomplete at this time.
Note2: This table is uptodate as of 2.6.28 kernel.
Filesystem name | Features? | Documentation(s) | Description | Distributions |
File systems often used as linux system partition | ||||
ext4 | R | (default filesystem in Debian) Fourth Extended Filesystem with extents | >= Squeeze | |
ext2 | RS | kDoc, WPedia | Second Extended Filesystem | All? |
ext3 | RS | kDoc, WPedia | Second Extended Filesystem with journaling extensions | All? |
ext4dev | R | Fourth Extended Filesystem with extents | Etch-n-Half ~ Lenny | |
jfs | R | The Journaled Filesystem (JFS) | All? | |
xfs | R | SGI XFS Filesystem | All? | |
reiserfs | R | ReiserFS journaled filesystem | All? | |
Other File systems | ||||
9p | Plan 9 9p remote filesystem protocol | All? | ||
adfs | Acorn (and Risc OS) Advanced Disc Filing System | All? | ||
affs | I | Amiga filesystem support for Linux | All? | |
kafs | N | AFS Client File System | All? | |
autofs4 | Auto-mount filesystems. See autofs | All? | ||
autofs | Auto-mount filesystems. See autofs | All? | ||
befs | I | BeOS File System (BeFS) driver | All? | |
bfs | I | SCO UnixWare BFS filesystem for Linux | All? | |
btrfs | RS | B-Tree filesystem | >= Jessie | |
cifs | N I | VFS to access servers complying with the SNIA CIFS Specification e.g. Samba and Windows | All? | |
coda | Coda Distributed File System VFS interface | All? | ||
configfs | Simple RAM filesystem for user driven kernel subsystem configuration. | All? | ||
cramfs | cram a filesystem onto a small ROM | All? | ||
dlm | Distributed Lock Manager | All? | ||
ecryptfs | eCryptfs | All? | ||
efs | SGI EFS, Extent File System (Irix <0.6) | All? | ||
fat | I | MS & DR DOS FAT filesystem | All? | |
freevxfs | Veritas Filesystem (VxFS) driver | All? | ||
fuse | Filesystem in Userspace (backend for various filesystems) | All? | ||
gfs2 | N | Global File System | All? | |
hfs | I | Macintosh HFS Filesystem | All? | |
hfsplus | I | HFSPlus / Extended Macintosh Filesystem | All? | |
hpfs | I | High Performance Filesys (OS/2's HPFS) | All? | |
isofs | CD | CD/DVD filesystem (ISO-9660 / ECMA-119) | All? | |
jbd2 | Generic filesystem journal-writing code (for ext4) | Squeeze | ||
jbd | Generic filesystem journal-writing code (for ext2/ext3) | All? | ||
jffs2 | MTD | The Journalling Flash File System, v2 | All? | |
minix | Minix native filesystem. (was used in Linux before ExtFS!) | All? | ||
msdos | I | MS-DOS filesystem support | All? | |
ncpfs | Netware NCP network protocol | All? | ||
nfs | N | Networks Filesystem | All? | |
ntfs(depreciated) | I | NTFS 1.2/3.x driver - Copyright (c) 2001-2007 Anton Altaparmakov | All? | |
ocfs2 | OCFS2 1.3.3 | All? | ||
omfs | OMFS (ReplayTV/Karma) Optimized MPEG Filesystem | >= Squeeze | ||
qnx4 | QNX (OS) Filesystem | All? | ||
romfs | ROM filesystem. See genromfs | <= Etch | ||
sysv | System V, V7 and Coherent and Xenix filesystems | All? | ||
ubifs | MTD | UBIFS - UBI File System | => Squeeze | |
udf | CD | Universal Disk Format Filesystem | All? | |
ufs | Unix filesystem, used in BSDs, SunOS, Nextstep, Openstep... | All? | ||
vfat | I | VFAT filesystem support | All? | |
zfs | The Z File System | => Stretch (DKMS) |
Features Legend :
Root: Suitable for system file system (like root and /usr...).
Interoperability: The filesystem is mostly implemented for Interoperability.
Distributed: file system.
Network Filesystem.
Sparsefile support
CD: Suitable for CD and/or DVD, etc.
MTD: Suitable for MTD devices.
Hints :
To list the FS types supported by your kernel, read its config file, run :
- To list the FS modules available in your kernel : To list the FS supported by your running kernel and currently loaded modules :
FUSE Filesystems
You can get the list of FS supported by through FUSE, by looking at the reverse dependencies on the package fuse-utils. At the time of writing :
Package name | Description | Distributions |
FUSE filesystem for APT source repositories | All | |
virtual filesystem to access archives, disk images, remote locations | All | |
implements a filesystem representing a live Beagle query | Sid | |
EncFS system tray applet for GNOME | All | |
filesystem to access FTP hosts based on FUSE and cURL | All | |
mount a WebDAV resource as a regular file system | All | |
encrypted virtual filesystem | All | |
virtual filesystem for flickr online photosharing service | All | |
user-space directory concatenation | ? | |
filesystem to mount WebDAV shares | All | |
File System in User Space - Module for ext2 | All | |
File System in User Space - Module for FAT | All | |
FUSE module to mount ISO filesystem images | All | |
File System in User Space - Module for ISO9660 | All | |
filesystem client based on the SMB file transfer protocol | All | |
clustered file-system | All | |
Use your GMail account as a filesystem | ? | |
filesystem to mount digital cameras | All | |
PAM module to automatically mount encfs filesystems on login | All | |
PAM module that can mount volumes for a user session | All | |
Fuse based remote filesystem for LTSP thin clients | All | |
file system for unifying several mount points into one | All | |
FUSE filesystem for Media Transfer Protocol devices | All | |
userspace filesystem client for MythTV | All | |
read/write NTFS driver for FUSE | >= Wheezy | |
ntfsprogs (depreciated) | tools for doing neat things in NTFS partitions from Linux | All |
mount filesystem of ObexFTP capable devices | All | |
Access EPOC device (Psion PDA) over a serial link | All | |
maps media files to an arbitrary directory structure | All | |
Read-Only Filesystem for FUSE | All | |
Full-featured file system for online data storage | All | |
filesystem client based on SSH File Transfer Protocol | All | |
View-OS in user space - ext2 module for UMFUSE | All | |
View-OS in user space - FAT module for UMFUSE | All | |
View-OS in user space - ISO9660 module for UMFUSE | All | |
Fuse implementation of unionfs | All | |
View and edit Wikipedia articles as if they were real files | All | |
implementation of Sun's ZFS filesystem in userspace | >=Squeeze |
Special file systems
Some sample use cases for special file systems:
allows mounting .vmdk (VMware) and .vdi(VirtualBox) image.
See also
Documents in the /usr/share/doc/linux-doc-2.6.26/Documentation/filesystems/ kernel module documentation (in package linux-doc-2.6 or above)
ToDo: Some modules provides 2 filesystems (for mount -t). e.g loading sysv provides sysv and v7 in /proc/filesystems.
CategorySystemAdministrationCategoryStorage
Fuse Ext4 Linux
FUSE doesn't provide any filesystem it-self. see 'apt-cache rdepends fuse-utils' (1)
2003 Cadillac Escalade Fuse Diagram
2003 Cadillac Escalade Fuse Diagram for instrument panel fuse box
1 IGN 3 Fuse 10A HVAC Components, Electronic Suspension Control (ESC) Components, Heated Seat Modules-Rear, Rear Wheel Steering
2 ECC Fuse 10A HVAC Control Assembly-Rear Auxiliary
3 DDM Fuse 15A Driver Door Module (DDM)
4 VEH STOP Fuse 15A Tail/Stop and Turn Signal Lamps-Rear, Throttle Actuator Control
5 IGN 0 Fuse 10A Passlock Sensor, Automatic Transmission, Powertrain Control
6 RR WPR Fuse 15A Rear WiperlWasher Switch
7 4WD Fuse 15A Front Axle Actuator, Transfer Case Shift Control Switch
8 TBC IGN 0 Fuse 10A Body Control Module (BCM)
9 CRUISE Fuse 10A Cruise Control Switch, Steering Wheel Speed/Position Sensor
10 HVAC 1 Fuse 10A HVAC Control Module, HVAC Actuators
11 HTPJAC Fuse 30A HVAC Control Module
12 SEC ACCY Fuse 10A Upfitter Provisions
13 VEH CHMSL Fuse 10A Center High Mounted Stop Lamp (CHMSL)
14 BRAKE Fuse 10A Stop Lamp Switch, Electronic Brake Control Module (EBCM), Traction Control Switch
15 WS WPR Fuse 25A Windshield Wiper Motor Module
16 PDM Fuse 10A Front Passenger Door Module (FPDM)
17 TBC 28 Fuse 15A Body Control Module (BCM)
18 TBC 2C Fuse 15A Body Control Module (BCM)
19 AUX PWR 2 Fuse 20A Accessory Power Outlet-D-Pillar
20 TBC ACCY Fuse 10A Body Control Module (BCM)
21 RT TRLR ST/TRN Fuse 10A Trailer Wiring
22 LT TRLR ST/TRN Fuse 10A Trailer Wiring
23 TBC 2A Fuse 15A Body Control Module (BCM)
24 LOCKS Fuse 20A Door Lock/Unlock Relays
25 FLASH Fuse 25A Turn Signal/Hazard Flasher Module
26 RT TRN Fuse 10A Turn Signal Lamps-Right, Marker Lamps-Right, Front Passenger Door Module (FPDM), Instrument Panel Cluster (IPC)
27 LT TRN Fuse 10A Turn Signal Lamps-Left, Marker Lamps-Left, Driver Door Module (DDM), Instrument Panel Cluster (IPC)
LOCK Relay Door Lock Actuator Liftgate, Door Latch Assembly LR/RR L DOOR 12 WAY-BLACK Fuse Block Left I/P C4 (Driver Door Harness)
UNLOCK Relay Door Lock Actuator Liftgate, Door Latch Assembly LR/RR RR FOG LP Relay Rear Fog Lamps (Export)
DRIVER UNLOCK Relay Not Used
BODY 12 – WAY BROWN Fuse Block Left I/P C3 (Body Harness)
CB LT DOORS 25A Window Switch LR, Driver Door Module (DDM)
2003 Cadillac Escalade Relay Block
2003 Cadillac Escalade Fuse Diagram for Underhood fuse box
Fuse Ext4
STUD # 1 40A Trailer Wiring, Automatic Level Control (ALC) Compressor Relay
MBEC 1 50A SEAT CB. RT DOOR CB
BLOWER 40A Blower Motor
LBEC 2 50A LOCKS Fuse. DDM Fuse, PDM Fuse, ECC Fuse, AUX PWR 2 Fuse
STUD #2 30A Trailer Wiring
ABS 60A Electronic Brake Control Module (EBCM)
VSES/ECAS 60A Electronic Brake Control Module (EBCM)
IGN A 40A Ignition Switch RUN. START. RUN/START/ACCY
IGN B 40A Ignition Switch RUN/ACC, RUN/START
LBEC 1 50A FLASH Fuse, TBC 2A Fuse. TBC 2B Fuse. TBC 2C Fuse. LT DOORS Fuse
TRL PARK 15A Trailer Wiring
RR PARK 10A Exterior Lamps-Right Rear, Clearance Lamps-Right
LR PARK 10A Exterior Lamps-Left Rear. Clearance Lamps-Left
PARK LP Relay – TRLR PARK Fuse, LR PARK Fuse, RR PARK Fuse, FRT PARK, INT PARK Fuse, DRL Relay (Export)
STARTER Relay – Starter
INTPARK 10A ID Lamp
STOP LP 25A Stop Lamp Switch
TBC BATT 10A Body Control Module (BCM). PASS-Key Module
SUNROOF 25A Sunroof Relay
SEC 82 30A Roof Beacon Relay
4WS 15A Rear Wheel Steering Control Module, Evaporative Emission (EVAP) Canister Vent Solenoid
RR HVAC 30A I-IVAC Control Assembly-Rear Auxiliary
AUX PWR 20A Accessory Power Outlets. Auxiliary Power Outlets
IGN 1 Relay – SBA Fuse, ETC/ECM Fuse, PCM 1 Fuse, INJ 1 Fuse, INJ 2 Fuse
PCM 1 15A Powertrain Control Module (PCM). Mass Air Flow (MFS) Sensor. Evaporative Emission (EVAP) Canister Purge Solenoid, Fuel Composition Sensor, Secondary Fuel Pump Relay
ETC/ECM 15A Throttle Actuator Control (TAC)
INJ 1 15A Fuel Injectors-Odd-Numbered. Ignition Coils-Odd-Numbered
INJ 2 15A Fuel Injectors-Even-Numbered. Ignition Coils-Even-Numbered
IGN E 10A NC COMP Relay, Park/Neutral Position (PNP) Switch, Turn Signal/Multifunction Switch, Headlamp Leveling Components
RTD 30A Automatic Level Control (ALC) Compressor, Electronic Suspension Control (ESC) Module
TRL B/U WA Body Control Module (BCM). Trailer Wiring. Back-Up Alarm
PCM B 20A Powertrain Control Module (PCM)
PRIME FIPMP Relay — Fuel Pump
02A 15A Heated Oxygen Sensors-before the catalytic converter
B/U LP 20A Park/Neutral Position (PNP) Switch
RR DEFOG 30A DEFOG Relay
HDLP-Hl Relay – HI HDLP-LT Fuse, HI HDLP-RT Fuse
02B 15A Heated Oxygen Sensors-after the catalytic converter
SIR 15A Inflatable Restraint Sensing and Diagnostic Module (SDM), Memory Seat Module-Passenger. Inside Reaview Mirror
FRT PARK 10A Park/Tum Signal Lamps-Front, Marker Lamps-Front
DRL Relay — DRL Fuse
SEO ION 10A DEFOG Relay. Instrument Panel Cluster (IPC). Rear Object Sensor Control Module
TBC IGN 1 10A Body Control Module (BCM)
HI HDLP-LT 10A Headlamp-High Beam-Left
LH HID 20A Headlamp Ballast-Left
DRL 10A DRL Relay (Domestic), Daytime Running Lamps (Export)
IPC/DIC 10A Instrument Panel Cluster (IPC)
HVAC/ECAS 10A HVAC Control Module
CIG LTR 15A Cigar Lighter, Data Link Connector (DLC)
HI HDLP-RT 10A Headlamp-High Beam-Right
HDLP-LOW Relay LO HDLP-LT Fuse
AC COMP Relay AC Compressor Clutch Assembly
AC COMP 10A AC COMP Relay
RR WPR 25A Window wiper Module-Rear
RADIO 15A Entertainment System Components
SEO B1 15A Instrument Panel Cluster (IPC), Rear Fog Lamp Relay. Overhead Console, Roof Beacon Switch LO HOLP-LT 10A Headlamp-Low Beam-Left, Headlamp Ballast-Left
BTSI 10A Stop Lamp Switch
CRANK 10A Powertrain Control Module (PCM)
LO HDLP-RT 10A Headlamp-Low Beam-Right. Headlamp Ballast-Right
FOG LP Relay FOG LP Fuse
FOG LP 15A FOG LP Relay
HORN Relay HORN Fuse
W/S WASH Relay W/S WASH Fuse
W/S WASH 15A W/S WASH Relay
INFO 15A Vehicle Communication Interface Module (VCIM). Rear Seat Entertainment (RSE) Assembly. Remote Playback Device-CD Player
RADIO AMP 30A Audio Amplifier
RH HID 20A Headlamp Ballast-Right
HORN 15A Horn-Left. Horn-Right
EAP 15A Electronic Adjustable Pedals (EAP) Relay
TREC 30A Transfer Case Encoder Motor, Transfer Case Shift Control Module
SBA 15A Supplemental Brake Assist Pump Motor
Note0: Debian HURD and Debian kFreeBSD have other file systems.
Note1: the Features list are incomplete at this time.
Note2: This table is uptodate as of 2.6.28 kernel.
Filesystem name | Features? | Documentation(s) | Description | Distributions |
File systems often used as linux system partition | ||||
ext4 | R | (default filesystem in Debian) Fourth Extended Filesystem with extents | >= Squeeze | |
ext2 | RS | kDoc, WPedia | Second Extended Filesystem | All? |
ext3 | RS | kDoc, WPedia | Second Extended Filesystem with journaling extensions | All? |
ext4dev | R | Fourth Extended Filesystem with extents | Etch-n-Half ~ Lenny | |
jfs | R | The Journaled Filesystem (JFS) | All? | |
xfs | R | SGI XFS Filesystem | All? | |
reiserfs | R | ReiserFS journaled filesystem | All? | |
Other File systems | ||||
9p | Plan 9 9p remote filesystem protocol | All? | ||
adfs | Acorn (and Risc OS) Advanced Disc Filing System | All? | ||
affs | I | Amiga filesystem support for Linux | All? | |
kafs | N | AFS Client File System | All? | |
autofs4 | Auto-mount filesystems. See autofs | All? | ||
autofs | Auto-mount filesystems. See autofs | All? | ||
befs | I | BeOS File System (BeFS) driver | All? | |
bfs | I | SCO UnixWare BFS filesystem for Linux | All? | |
btrfs | RS | B-Tree filesystem | >= Jessie | |
cifs | N I | VFS to access servers complying with the SNIA CIFS Specification e.g. Samba and Windows | All? | |
coda | Coda Distributed File System VFS interface | All? | ||
configfs | Simple RAM filesystem for user driven kernel subsystem configuration. | All? | ||
cramfs | cram a filesystem onto a small ROM | All? | ||
dlm | Distributed Lock Manager | All? | ||
ecryptfs | eCryptfs | All? | ||
efs | SGI EFS, Extent File System (Irix <0.6) | All? | ||
fat | I | MS & DR DOS FAT filesystem | All? | |
freevxfs | Veritas Filesystem (VxFS) driver | All? | ||
fuse | Filesystem in Userspace (backend for various filesystems) | All? | ||
gfs2 | N | Global File System | All? | |
hfs | I | Macintosh HFS Filesystem | All? | |
hfsplus | I | HFSPlus / Extended Macintosh Filesystem | All? | |
hpfs | I | High Performance Filesys (OS/2's HPFS) | All? | |
isofs | CD | CD/DVD filesystem (ISO-9660 / ECMA-119) | All? | |
jbd2 | Generic filesystem journal-writing code (for ext4) | Squeeze | ||
jbd | Generic filesystem journal-writing code (for ext2/ext3) | All? | ||
jffs2 | MTD | The Journalling Flash File System, v2 | All? | |
minix | Minix native filesystem. (was used in Linux before ExtFS!) | All? | ||
msdos | I | MS-DOS filesystem support | All? | |
ncpfs | Netware NCP network protocol | All? | ||
nfs | N | Networks Filesystem | All? | |
ntfs(depreciated) | I | NTFS 1.2/3.x driver - Copyright (c) 2001-2007 Anton Altaparmakov | All? | |
ocfs2 | OCFS2 1.3.3 | All? | ||
omfs | OMFS (ReplayTV/Karma) Optimized MPEG Filesystem | >= Squeeze | ||
qnx4 | QNX (OS) Filesystem | All? | ||
romfs | ROM filesystem. See genromfs | <= Etch | ||
sysv | System V, V7 and Coherent and Xenix filesystems | All? | ||
ubifs | MTD | UBIFS - UBI File System | => Squeeze | |
udf | CD | Universal Disk Format Filesystem | All? | |
ufs | Unix filesystem, used in BSDs, SunOS, Nextstep, Openstep... | All? | ||
vfat | I | VFAT filesystem support | All? | |
zfs | The Z File System | => Stretch (DKMS) |
Features Legend :
Root: Suitable for system file system (like root and /usr...).
Interoperability: The filesystem is mostly implemented for Interoperability.
Distributed: file system.
Network Filesystem.
Sparsefile support
CD: Suitable for CD and/or DVD, etc.
MTD: Suitable for MTD devices.
Hints :
To list the FS types supported by your kernel, read its config file, run :
- To list the FS modules available in your kernel : To list the FS supported by your running kernel and currently loaded modules :
FUSE Filesystems
You can get the list of FS supported by through FUSE, by looking at the reverse dependencies on the package fuse-utils. At the time of writing :
Package name | Description | Distributions |
FUSE filesystem for APT source repositories | All | |
virtual filesystem to access archives, disk images, remote locations | All | |
implements a filesystem representing a live Beagle query | Sid | |
EncFS system tray applet for GNOME | All | |
filesystem to access FTP hosts based on FUSE and cURL | All | |
mount a WebDAV resource as a regular file system | All | |
encrypted virtual filesystem | All | |
virtual filesystem for flickr online photosharing service | All | |
user-space directory concatenation | ? | |
filesystem to mount WebDAV shares | All | |
File System in User Space - Module for ext2 | All | |
File System in User Space - Module for FAT | All | |
FUSE module to mount ISO filesystem images | All | |
File System in User Space - Module for ISO9660 | All | |
filesystem client based on the SMB file transfer protocol | All | |
clustered file-system | All | |
Use your GMail account as a filesystem | ? | |
filesystem to mount digital cameras | All | |
PAM module to automatically mount encfs filesystems on login | All | |
PAM module that can mount volumes for a user session | All | |
Fuse based remote filesystem for LTSP thin clients | All | |
file system for unifying several mount points into one | All | |
FUSE filesystem for Media Transfer Protocol devices | All | |
userspace filesystem client for MythTV | All | |
read/write NTFS driver for FUSE | >= Wheezy | |
ntfsprogs (depreciated) | tools for doing neat things in NTFS partitions from Linux | All |
mount filesystem of ObexFTP capable devices | All | |
Access EPOC device (Psion PDA) over a serial link | All | |
maps media files to an arbitrary directory structure | All | |
Read-Only Filesystem for FUSE | All | |
Full-featured file system for online data storage | All | |
filesystem client based on SSH File Transfer Protocol | All | |
View-OS in user space - ext2 module for UMFUSE | All | |
View-OS in user space - FAT module for UMFUSE | All | |
View-OS in user space - ISO9660 module for UMFUSE | All | |
Fuse implementation of unionfs | All | |
View and edit Wikipedia articles as if they were real files | All | |
implementation of Sun's ZFS filesystem in userspace | >=Squeeze |
Special file systems
Some sample use cases for special file systems:
allows mounting .vmdk (VMware) and .vdi(VirtualBox) image.
See also
Documents in the /usr/share/doc/linux-doc-2.6.26/Documentation/filesystems/ kernel module documentation (in package linux-doc-2.6 or above)
ToDo: Some modules provides 2 filesystems (for mount -t). e.g loading sysv provides sysv and v7 in /proc/filesystems.
CategorySystemAdministrationCategoryStorage
Fuse Ext4 Linux
FUSE doesn't provide any filesystem it-self. see 'apt-cache rdepends fuse-utils' (1)
2003 Cadillac Escalade Fuse Diagram
2003 Cadillac Escalade Fuse Diagram for instrument panel fuse box
1 IGN 3 Fuse 10A HVAC Components, Electronic Suspension Control (ESC) Components, Heated Seat Modules-Rear, Rear Wheel Steering
2 ECC Fuse 10A HVAC Control Assembly-Rear Auxiliary
3 DDM Fuse 15A Driver Door Module (DDM)
4 VEH STOP Fuse 15A Tail/Stop and Turn Signal Lamps-Rear, Throttle Actuator Control
5 IGN 0 Fuse 10A Passlock Sensor, Automatic Transmission, Powertrain Control
6 RR WPR Fuse 15A Rear WiperlWasher Switch
7 4WD Fuse 15A Front Axle Actuator, Transfer Case Shift Control Switch
8 TBC IGN 0 Fuse 10A Body Control Module (BCM)
9 CRUISE Fuse 10A Cruise Control Switch, Steering Wheel Speed/Position Sensor
10 HVAC 1 Fuse 10A HVAC Control Module, HVAC Actuators
11 HTPJAC Fuse 30A HVAC Control Module
12 SEC ACCY Fuse 10A Upfitter Provisions
13 VEH CHMSL Fuse 10A Center High Mounted Stop Lamp (CHMSL)
14 BRAKE Fuse 10A Stop Lamp Switch, Electronic Brake Control Module (EBCM), Traction Control Switch
15 WS WPR Fuse 25A Windshield Wiper Motor Module
16 PDM Fuse 10A Front Passenger Door Module (FPDM)
17 TBC 28 Fuse 15A Body Control Module (BCM)
18 TBC 2C Fuse 15A Body Control Module (BCM)
19 AUX PWR 2 Fuse 20A Accessory Power Outlet-D-Pillar
20 TBC ACCY Fuse 10A Body Control Module (BCM)
21 RT TRLR ST/TRN Fuse 10A Trailer Wiring
22 LT TRLR ST/TRN Fuse 10A Trailer Wiring
23 TBC 2A Fuse 15A Body Control Module (BCM)
24 LOCKS Fuse 20A Door Lock/Unlock Relays
25 FLASH Fuse 25A Turn Signal/Hazard Flasher Module
26 RT TRN Fuse 10A Turn Signal Lamps-Right, Marker Lamps-Right, Front Passenger Door Module (FPDM), Instrument Panel Cluster (IPC)
27 LT TRN Fuse 10A Turn Signal Lamps-Left, Marker Lamps-Left, Driver Door Module (DDM), Instrument Panel Cluster (IPC)
LOCK Relay Door Lock Actuator Liftgate, Door Latch Assembly LR/RR L DOOR 12 WAY-BLACK Fuse Block Left I/P C4 (Driver Door Harness)
UNLOCK Relay Door Lock Actuator Liftgate, Door Latch Assembly LR/RR RR FOG LP Relay Rear Fog Lamps (Export)
DRIVER UNLOCK Relay Not Used
BODY 12 – WAY BROWN Fuse Block Left I/P C3 (Body Harness)
CB LT DOORS 25A Window Switch LR, Driver Door Module (DDM)
2003 Cadillac Escalade Relay Block
2003 Cadillac Escalade Fuse Diagram for Underhood fuse box
Fuse Ext4
STUD # 1 40A Trailer Wiring, Automatic Level Control (ALC) Compressor Relay
MBEC 1 50A SEAT CB. RT DOOR CB
BLOWER 40A Blower Motor
LBEC 2 50A LOCKS Fuse. DDM Fuse, PDM Fuse, ECC Fuse, AUX PWR 2 Fuse
STUD #2 30A Trailer Wiring
ABS 60A Electronic Brake Control Module (EBCM)
VSES/ECAS 60A Electronic Brake Control Module (EBCM)
IGN A 40A Ignition Switch RUN. START. RUN/START/ACCY
IGN B 40A Ignition Switch RUN/ACC, RUN/START
LBEC 1 50A FLASH Fuse, TBC 2A Fuse. TBC 2B Fuse. TBC 2C Fuse. LT DOORS Fuse
TRL PARK 15A Trailer Wiring
RR PARK 10A Exterior Lamps-Right Rear, Clearance Lamps-Right
LR PARK 10A Exterior Lamps-Left Rear. Clearance Lamps-Left
PARK LP Relay – TRLR PARK Fuse, LR PARK Fuse, RR PARK Fuse, FRT PARK, INT PARK Fuse, DRL Relay (Export)
STARTER Relay – Starter
INTPARK 10A ID Lamp
STOP LP 25A Stop Lamp Switch
TBC BATT 10A Body Control Module (BCM). PASS-Key Module
SUNROOF 25A Sunroof Relay
SEC 82 30A Roof Beacon Relay
4WS 15A Rear Wheel Steering Control Module, Evaporative Emission (EVAP) Canister Vent Solenoid
RR HVAC 30A I-IVAC Control Assembly-Rear Auxiliary
AUX PWR 20A Accessory Power Outlets. Auxiliary Power Outlets
IGN 1 Relay – SBA Fuse, ETC/ECM Fuse, PCM 1 Fuse, INJ 1 Fuse, INJ 2 Fuse
PCM 1 15A Powertrain Control Module (PCM). Mass Air Flow (MFS) Sensor. Evaporative Emission (EVAP) Canister Purge Solenoid, Fuel Composition Sensor, Secondary Fuel Pump Relay
ETC/ECM 15A Throttle Actuator Control (TAC)
INJ 1 15A Fuel Injectors-Odd-Numbered. Ignition Coils-Odd-Numbered
INJ 2 15A Fuel Injectors-Even-Numbered. Ignition Coils-Even-Numbered
IGN E 10A NC COMP Relay, Park/Neutral Position (PNP) Switch, Turn Signal/Multifunction Switch, Headlamp Leveling Components
RTD 30A Automatic Level Control (ALC) Compressor, Electronic Suspension Control (ESC) Module
TRL B/U WA Body Control Module (BCM). Trailer Wiring. Back-Up Alarm
PCM B 20A Powertrain Control Module (PCM)
PRIME FIPMP Relay — Fuel Pump
02A 15A Heated Oxygen Sensors-before the catalytic converter
B/U LP 20A Park/Neutral Position (PNP) Switch
RR DEFOG 30A DEFOG Relay
HDLP-Hl Relay – HI HDLP-LT Fuse, HI HDLP-RT Fuse
02B 15A Heated Oxygen Sensors-after the catalytic converter
SIR 15A Inflatable Restraint Sensing and Diagnostic Module (SDM), Memory Seat Module-Passenger. Inside Reaview Mirror
FRT PARK 10A Park/Tum Signal Lamps-Front, Marker Lamps-Front
DRL Relay — DRL Fuse
SEO ION 10A DEFOG Relay. Instrument Panel Cluster (IPC). Rear Object Sensor Control Module
TBC IGN 1 10A Body Control Module (BCM)
HI HDLP-LT 10A Headlamp-High Beam-Left
LH HID 20A Headlamp Ballast-Left
DRL 10A DRL Relay (Domestic), Daytime Running Lamps (Export)
IPC/DIC 10A Instrument Panel Cluster (IPC)
HVAC/ECAS 10A HVAC Control Module
CIG LTR 15A Cigar Lighter, Data Link Connector (DLC)
HI HDLP-RT 10A Headlamp-High Beam-Right
HDLP-LOW Relay LO HDLP-LT Fuse
AC COMP Relay AC Compressor Clutch Assembly
AC COMP 10A AC COMP Relay
RR WPR 25A Window wiper Module-Rear
RADIO 15A Entertainment System Components
SEO B1 15A Instrument Panel Cluster (IPC), Rear Fog Lamp Relay. Overhead Console, Roof Beacon Switch LO HOLP-LT 10A Headlamp-Low Beam-Left, Headlamp Ballast-Left
BTSI 10A Stop Lamp Switch
CRANK 10A Powertrain Control Module (PCM)
LO HDLP-RT 10A Headlamp-Low Beam-Right. Headlamp Ballast-Right
FOG LP Relay FOG LP Fuse
FOG LP 15A FOG LP Relay
HORN Relay HORN Fuse
W/S WASH Relay W/S WASH Fuse
W/S WASH 15A W/S WASH Relay
INFO 15A Vehicle Communication Interface Module (VCIM). Rear Seat Entertainment (RSE) Assembly. Remote Playback Device-CD Player
RADIO AMP 30A Audio Amplifier
RH HID 20A Headlamp Ballast-Right
HORN 15A Horn-Left. Horn-Right
EAP 15A Electronic Adjustable Pedals (EAP) Relay
TREC 30A Transfer Case Encoder Motor, Transfer Case Shift Control Module
SBA 15A Supplemental Brake Assist Pump Motor
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