Peterbilt 387 Truck Wiring Diagram PDF

Covers: Peterbilt 387 series
Format: PDF
File size: 2mb
Compatible with: Windows/Mac/Tablet
Notes: High resolution diagram/schematic download

Wiring diagrams for the Pete 387 series truck chassis in downloadable PDF format. Engine/trans. wiring diagrams sold separately.

Select appropriate year range from the drop-down menu.

Contents (varies by manual selected):

Before 11-15-2005

• INDEX SYMBOL KEY
• HARNESS FLOW CHART
• +12V POWER DISTRIBUTION
• NEGATIVE POWER DISTRIBUTION
• +12V POWER DISTRIBUTION (OPTIONAL DISCONNECT)
• WIPER/WASHER
• HORN
• MANUAL FAN CONTROL
• HVAC CUMMINS/CATERPILLAR
• TURN SIGNAL/STOP/HAZARDS/AUX TRAILER
• REVERSE LAMPS
• MARKER LAMPS
• HEAD LAMP/DRL
• FOGLAMPS
• FUEL HEATER
• AIR DRYER
• INTERFACE MODULE
• SPOT LAMPS
• LOAD LAMPS BRACKET MOUNTED/FLUSH MOUNTED/MUTIPLE/COIL 10’
• FLUORESCENT LAMP SLEEPER
• FLOOR LAMP
• ETHER START CATERPILLAR
• WINDOW LIFT
• CENTRAL DOOR LOCKS
• DOOR LAMPS/DOME LAMPS
• PREMIUM SOUND
• SLEEPER TOOL BOX LAMPS
• SLEEPER CLOCK
• AUX FAN
• SLEEPER READING LAMPS
• REFRIGERATOR UNIT REFER
• SLEEPER POWER ACCESSOUTLETS
• SLEEPER FLOOR LAMP
• SLEEPER HVAC
• DIGITAL MESSAGE CENTER
• ABS LOW
• ABS HI
• CAB CIGAR LIGHTER PWR COMM
• SPARE SWITCHES
• TWO SPEED/INTER/FIFTH WHEEL/DIFF LOCK/PTO
• LOW COOLANT
• EATON TOP2 TRANSMISSION
• MIRROR CONTROL/HEATER
• ENGINE BRAKE/CRUISE CONTROL/DIAGNOSTIC
• RADIO
• SPARE POWER/SYSTEM SLEEPER
• CATERPILLAR CUMMINS ENGINE ECU/TPS/SPEED SENSOR/INTERUPT/WARNING LAMPS
• SMC SPEEDO MESSAGECENTER
• DATA LINK
• CAB SPARE POWER/SYSTEM EXPANSION
• CB RADIO
• BACKLIGHTING +12VOLTS
• NEGATIVE SWITCH LINKS
• SPLICE LOCATION – DISTRIBUTION
• ASH TRAY
• CAB/CHASSIS HARNESS LAYOUT
• SLEEPER HARNESS LAYOUT
•  FUEL HOT LINE

11/2005 through 2009

• INDEX SYMBOL KEY
• HARNESS FLOW CHART
• +12V POWER DISTRIBUTION (OPTIONAL DISCONNECT, START JUMP TERMINALS)
• NEGATIVE POWER DISTRIBUTION
• +12V POWER AND STARTING
• WIPER / WASHER
• HORN
• MANUAL FAN CONTROL
• HVAC CUMMINS / CATERPILLAR
• TURN SIGNAL / STOP / HAZARDS / AUX TRAILER
• REVERSE LAMPS
• MARKER LAMPS
• HEAD LAMP / DRL
• FOG LAMPS
• AIR DRYER
• INTERFACE MODULE
• SPOT LAMPS
• LOAD LAMPS BRACKET MOUNTED / FLUSH MOUNTED /MULTIPLE / COIL 10′
• FLUORESCENT LAMP SLEEPER
• FLOOR LAMP
• WINDOW LIFT
• CENTRAL DOOR LOCKS
• DOOR LAMPS / DOME LAMPS
• PREMIUM SOUND
• SLEEPER TOOL BOX LAMPS
• SLEEPER CLOCK
• AUX FAN
• SLEEPER READING LAMPS
• REFRIGERATOR UNIT REFER
• SLEEPER POWER ACCESS OUTLETS
• SLEEPER FLOOR LAMP
• SLEEPER HVAC
• DIGITAL MESSAGE CENTER / NAVIGATION / ROAD RELAY
• E-BASIC ABS CAB HARNESS
• E-BASIC ABS CHASSIS HARNESS
• CAB CIGAR LIGHTER POWER CONNECTION
• SPARE SWITCHES
• TWO SPEED / INTER / FIFTH WHEEL / DIFF LOCK / PTO
• LOW COOLANT
• EATON TOP 2 TRANSMISSION
• MIRROR CONTROL / HEATER / GLARESTOPPER
• ENGINE BRAKE / CRUISE CONTROL / DIAGNOSTIC
• RADIO
• SPARE POWER SYSTEM EXPANSION SLEEPER
• CATERPILLAR CUMMINS ENGINE ECU / TPS /SPEED SENSOR / INTERUPT / WARNING LAMPS
• SMC SPEEDO MESSAGE CENTER
• DATA LINK
• CAB SPARE POWER / SYSTEM EXPANSION
• CB RADIO
• BACKLIGHTING +12VOLTS
• NEGATIVE SWITCH LINKS
• SPLICE LOCATION – DISTRIBUTION
• ASH TRAY
• FUEL HOT LINE
• CAB LOAD CENTER (CLC)
• SLEEPER LOAD CENTER (SLC)
• CHASSIS LOAD CENTER DECAL
• TRAILER-DECAL
• SLEEPER SPARES LOAD CENTER DECAL
• CAB SPARES LOAD CENTER DECAL
• TRAILER LOAD CENTER
• FREEDOMLINE TRANSMISSION
• AUTO SHIFT
• ULTRASHIFT TRANSMISSION
• SWITCHED 7th WIRE HOT
• EATON VORAD
• WARNING LIGHTS
• WARNING LIGHT BAR
• SPEED SENSITIVE DIFF LOCK
• REMOTE KEYLESS ENTRY
• SLPR LOW VOLTAGE DISCONNECT
• CUMMINS ICON2 IDLE CONTROL SYSTEM

2010 and newer

• INDEX
• LOCATION OF MAJOR COMPONENTS ( FIREWALL DASH )
• HARNESS ARCHITECTURE ( BLOCK DIAGRAM )
• MAIN CAB WIRING
• DIFF LOCK AND SUSPENSION DUMP WIRING
• HDR- HEADER ( ROOF ) WIRING
• HDR-LOADLIGHT WIRING ( BRKT MOUNTED )
• AUD1, AUD2- RADIO ( AUDIO ) WIRING
• DOOR-LH, DOOR-RH- DOOR WIRING ( LH / RH )
• FLOOR- FLOORLIGHT WIRING
• VOR / STAB- VORAD AND STABILITY ( CAB / CHASSIS ) WIRING
• TRLR-1,TRLR-2,TRLR-AUX-TRAILER WIRING ( STANDARD AND ISO )
• CHASSIS WIRING
• ABS-1- ABS CAB WIRING
• ABS-CHAS- ABS CHASSIS WIRING
• COMMON CAB WIRING FOR ALL ENGINES (COMPILED)
• SLPR- SLEEPER WIRING
• OMNIVISION-QUALCOMM
• SYMBOLS-SWITCHES, ETC
• LABELS-POWER DISTRIBUTIONS (CAB, SLEEPER )

Main Cab Harness (1999-2014) – included with all

Example schematic:

F.A.Q.

How does this work?

It’s simple – after purchasing a schematic through our secure checkout, a download link will be sent to the email address you specify at checkout. You have up to 90 days to retrieve and save the files. Once the file is saved to your computer, it is yours for good.

How do I view the schematic?

We recommend Adobe Reader (free) or Foxit PDF Reader (free) for viewing and saving PDF files.

Can you send me a printed version?

We sell downloadable schematics only, however they can be printed by your local print shop.

Have any questions or need more details? Contact Us