Peterbilt Service Manual Wiring Diagrams
Peterbilt Service Manuals PDF, Workshop Manuals, Spare Parts Catalog, Wiring Diagrams, Schematics Circuit Diagrams, Fault Codes
Vehicle Identification
All Peterbilt vehicles are identified by a 17–digit Vehicle Identification Number (VIN). This unique numeral and letter combination identifies the manufacturer, the model year it was
built, and other vehicle attributes. The VIN is in compliancewith 49CFR565, Code of Federal Regulations. As an example, the model year and assembly plant are designated by a
letter in the tenth and eleventh character positions (see 4 and 5 below).
The Chassis/Serial Number refers to the last seven characters of the VIN, including the assembly plant designator (eleventh character position) and a six-digit serial
number. This number will allow your Peterbilt Dealer to identify your vehicle. You will be asked for this number when you bring your vehicle in for service.
VIN Location
The VIN is marked on the Incomplete Vehicle Certification
Label (on trucks) or on the Tire, Rim, and Weight Rating
Data Label (on tractors). Both labels are located on the
driver’s door frame.
Peterbilt Wiring Diagrams / Wiring Schematic
1) INDEX SYMBOL KEY
2) HARNESS FLOW CHART
3) +12V POWER DISTRIBUTION
4) NEGATIVE POWER DISTRIBUTION
5) +12V POWER DISTRIBUTION (OPTIONAL DISCONNECT)
6) WIPER/WASHER
7) HORN
8) MANUAL FAN CONTROL
9) HVAC CUMMINS/CATERPILLAR
10) TURN SIGNAL/STOP/HAZARDS/AUX TRAILER
11) REVERSE LAMPS
12) MARKER LAMPS
13) HEAD LAMP/DRL
14) FOG LAMPS
15) FUEL HEATER
16) AIR DRYER
17) INTERFACE MODULE
18) SPOT LAMPS
19) LOAD LAMPS
BRACKET MOUNTED/FLUSH MOUNTED/
MUTIPLE/COIL 10’
20) FLUORESCENT LAMP SLEEPER
21) FLOOR LAMP
22) ETHER START CATERPILLAR
23) WINDOW LIFT
24) CENTRAL DOOR LOCKS
25) DOOR LAMPS/DOME LAMPS
26) PREMIUM SOUND
27) SLEEPER TOOL BOX LAMPS
28) SLEEPER CLOCK
29) AUX FAN
30) SLEEPER READING LAMPS
31) REFRIGERATOR UNIT REFER
32) SLEEPER POWER ACCESS OUTLETS
33) SLEEPER FLOOR LAMP
34) SLEEPER HVAC
35) DIGITAL MESSAGE CENTER
36) ABS LOW
37) ABS HI
38) CAB CIGAR LIGHTER PWR COMM
39) SPARE SWITCHES
40) TWO SPEED/INTER/FIFTH WHEEL/DIFF LOCK/PTO
41) LOW COOLANT
42) EATON TOP 2 TRANSMISSION
43) MIRROR CONTROL/HEATER
44) ENGINE BRAKE/CRUISE CONTROL/DIAGNOSTIC
45) RADIO
46) SPARE POWER/SYSTEM SLEEPER
47) CATERPILLAR CUMMINS ENGINE ECU/TPS/
SPEED SENSOR/INTERUPT/WARNING LAMPS
48) SMC SPEEDO MESSAGE CENTER
49) DATA LINK
50) CAB SPARE POWER/SYSTEM EXPANSION
51) CB RADIO
52) BACKLIGHTING +12VOLTS
53) NEGATIVE SWITCH LINKS
54) SPLICE LOCATION - DISTRIBUTION
55) SPLICE LOCATION - DISTRIBUTION
56) ASH TRAY
57) CAB/CHASSIS HARNESS LAYOUT
58) SLEEPER HARNESS LAYOUT
59) FUEL HOT LINE
Maria (Wednesday, 12 February 2025 19:36)
Looking for a wiring diagram for a 2021 Peterbilt 579. Thank you ever so much.
Ernesto Guzman (Thursday, 18 January 2024 05:08)
hello could you please help me to find electric wiring diagram for a 2015 peterbilt 348
Mcquack78@gmail.com
THANK YOU.
Austin Norris (Friday, 29 December 2023 15:05)
Need a 2022 567 light harness wiring diagram
Mark Melzer (Thursday, 28 December 2023 16:19)
I am in need of a full wiring diagram for a 2020 567 Peterbilt
Ronald C Garvin (Friday, 17 November 2023 03:45)
I need a wiring schematic for
a dash cluster for a 1987 peterbilt 357?
Daniel Santos (Friday, 22 September 2023 23:25)
Need a 2007 Peterbilt 357 wiring schematic
Susan Hudson (Thursday, 14 September 2023 04:17)
Need a peterbilt 251 wiring diagram
Todd cross (Monday, 11 September 2023 19:38)
Looking for wiring diagram for ignition circuit on 2014 peterbilt 579.
JOHN CORRIVEAU (Wednesday, 30 August 2023 19:18)
LOOKING FOR THE BRAKE LIGHT WIRING DIAGRAM FOR A 2015 PETERBILT 579
mark (Thursday, 04 May 2023 23:05)
I needs the chassis wiring diagram for a 2011 Peterbilt Model 320
Michael (Thursday, 13 April 2023 02:46)
I'm looking for wiring schematics and diagrams for 2008 peterbilt 386 with a cat im told everything 389 is a 386 as well
Matthew Perry (Wednesday, 12 April 2023 20:24)
Looking for a wiring diagram for a 2016 peterbilt 220 looking for the turnsignal wiring we have no left turn signal & need to know where it comes out the cab & goes where
William Cabral (Sunday, 26 March 2023 04:44)
Need wiring schematic for 2020 337 Peterbilt cab or more specifically the heated mirror circuit.
Devante Benoit (Saturday, 17 December 2022 20:55)
What is the name of the secondary light panel below the cluster on the dash of 2006 Peterbilt 379?
kevin (Monday, 17 October 2022 15:55)
needs headlight wiring diagram for 2013 peterbilt 384
RUDY (Thursday, 29 September 2022 00:52)
NEED THE CHASIS ELECTRICAL DIAGRAM FOR A 384
Chris Flower (Tuesday, 12 July 2022 18:05)
Need Electric diagram for load light on dash 2008 Peterbilt 335
Juan (Tuesday, 07 June 2022 04:41)
I need 2010 Peterbilt 365 HVAC system diagram
Ryan (Saturday, 26 March 2022 22:11)
when you click on the 389 diagrams it brings up 379 diagrams so not very helpful
Cliff DAvignon (Thursday, 24 March 2022 14:04)
Need wire diagrams for 2008 peterbilt 388
Thanks
grneye@live.com
Greg Rosales (Sunday, 27 February 2022 22:59)
Looking for fuse and relay identification for a 2000, 385
Glen (Thursday, 24 February 2022 20:51)
Were are the 365 wiring schematic
Russell Lassiter (Wednesday, 23 February 2022 03:05)
Wiring diagram for a 2014 388 peterbilt. Need it for the dash shorted out wire for the roof lights
daniel miller (Thursday, 30 December 2021 19:24)
need the schematic for a 330 on the cruise control
Michael Fletcher (Tuesday, 16 November 2021 20:08)
I sent a message about location of tach wire that comes to the instrument cluster on a 2006 peterbilt 379. Any help would be great. Blowerbuggy69@gmail.com
Michael Fletcher (Saturday, 13 November 2021 00:52)
I need the wiring diagram for the gauge cluster plug that connects to the cluster for the speedo and tach. This is for a 2006 peterbilt 379. Doing a remote start on the truck and need to know what colors the tach wires are and specifically which one is for the tach signal . Thanks
chuck (Thursday, 21 October 2021 15:44)
need a trn sig wiring diagram for 2017-18 579 pete
Kevin (Tuesday, 12 October 2021 09:19)
Looking for 2016 peterbilt 579 radio wiring harness diagram.
Joel (Tuesday, 10 August 2021 18:50)
What is the name of the fuse for the stereo on a Peterbilt 579 when looking at the Diagram
Pete Greig (Tuesday, 03 August 2021 02:24)
Trying to find turn signal wiring diagram for 2004 Model 385
daniel harrell (Tuesday, 03 August 2021 01:46)
Tring to find a service manual for 1976 359
Robert Gentile (Sunday, 01 August 2021 15:27)
Need electric window wiring for 2020 peterbuilt 520
Greg Wiederin (Saturday, 31 July 2021 02:43)
2007 386 concert class radio wiring diagram
Aubrey Hines (Thursday, 10 June 2021 05:17)
need rear tail light wiring diagram
Chris B (Saturday, 29 May 2021 02:18)
Need service manual with electrical schematics for 2004 357 Pete. Thanks.
W D Moore (Saturday, 22 May 2021 18:44)
Need cab wiring diagram for 2017 579 Peterbilt
paul (Tuesday, 30 March 2021 16:16)
Need wiring diagram for 11 pete 365
Tony Perryman (Sunday, 28 March 2021 05:04)
I need a wiring diagram for a 2017 Peterbilt 579 CECU. Especially the Chassis Node Harness
Greg whitesell (Friday, 26 March 2021 19:37)
Need a wiring schematic for Peterbilt 377 LH door eg for window? And basically can controler
Michael Gould (Thursday, 11 February 2021 15:55)
I work for a government agency. So cost is a concern. Do you have access to a wiring diagram for a 2006 Peterbilt 335 for lighting (head, turn, tail).
Von Fletcher (Wednesday, 03 February 2021 17:36)
i need a wire diagram for the speed sensor on a 2001pete 379 with cat C16
ismae; (Thursday, 28 January 2021 00:23)
can you help me find a wiring diagram for a peterbilt 320
BORIS (Friday, 15 May 2020 18:25)
hi can you help me to find cab wiring diagram for jake brakes on1996 peterbilt 379 with cummins N14 select PLUS thanks slobodantamodaleko@yahoo.com
victor lopez (Wednesday, 13 May 2020 01:16)
hello could you please help me to find electric wiring diagrans for a 2012 peterbilt 386.
THANK YOU.
maq_lora@hotmail.com