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