Chapter 1A - Electrical Systems Rev 3.2a - 180805 Update.des (EN)

1: Title Page

1A 3.2a Western Star Bodybuilder Book: Revision Table of Contents P. 1A-1 Section 1A Electrical Systems This guide is to be used as a reference document only. Please consult your Western Star CAE representa Ɵve on specific spec’ing needs as the informa Ɵon contained in this document can change without no Ɵce. For EPA2010 and newer. Legacy EPA98 and older, please reference version 3.1 and older.

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2: Table of Contents

1A 3.2a Western Star Bodybuilder Book: Revision Table of Contents P. 1A-2 4700 Legacy vs.

4700 Enhanced 1A-3 Fuse and Relay Blocks Models 4800/4900/6900 Electrical Harness Information 1A-4 1A-5 1A-6 Models 4700 Legacy/4800/4900/6900 Model 4700 Enhanced 1A-25 1A-24 Model 4700 Legacy Model 4700 Enhanced Model 4700 Enhanced 1A-26 Revised Model 4700 Enhanced Service Bulletin Revised 1A-27 Dash Mounted Device Prep Model 4700 Enhanced Service Bulletin (Cont.) 1A-28 Revised Models 4700 Legacy/4800/4900/6900 Model 4700 Enhanced Backup Camera and Backup Radar Power Cutoff Switches 1A-7 1A-8 In Cab Body Builder Connections Revised 1A-9 Model 4700 Legacy Model 4700 Enhanced Revised 1A-29 1A-30 Revised Cab Passthrough & Floor Track Models 4800/4900/6900 Model 4700 Legacy Model 4700 Enhanced Power Net Distribution Box (PNDB) 1A-10 1A-11 1A-12 Model 4700 Legacy Model 4700 Enhanced Revised 1A-31 1A-32 1A-33 1A-34 1A-35 Revised Revised Utility Lights Daytime Running Lights - Discon/Recon Models 4800/4900/6900 Model 4700 Legacy Model 4700 Enhanced Auxiliary PNDB for 4700 Legacy Auxiliary PNDB for 4700 Enhanced Power Train - Power Distribution Module 1A-13 1A-14 1A-15 1A-16 1A-17 Lighting Mods and Harness Repair Tail Lights Model 4700/4800/4900/6900 Model 4700/4800/4900/6900 Model 4700 Legacy/4700 Enhanced - Variants 1A-36 1A-37 1A-38 1A-18 Model 4700 Legacy/4700 Enhanced - Variants 1A-39 1A-20 Dash Switches 1A-19 Model 4700 Legacy/4700 Enhanced - Variants 1A-40 1A-41 WST Gauges & RX Module Revised Revisions Star Gauge System 1A-21 J1939 Connection Models 4700 Legacy/4800/4900/6900 Model 4700 Enhanced 1A-22 1A-23

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3: 4700 Legacy VS 4700 44U

Western Star Bodybuilder Book: Revision 3.2a 1A 4700 Identification - Legacy vs. Enhanced P. 1A-3 b 4700 Legacy Dash & Interior The 4700 truck has been redesigned to incorporate T.o.C. many new features. In this entire document, the existing 4700 will be labeled “4700 L” (for Legacy) and the new vehicle, which is called the 4700 Enhanced, will be labeled as “4700 ENH”. Shown on this page are some of the key identifying features to establish which version you have. 4700 Enhanced Dash & Interior Features:

w Contour improvements and congruent look w More modern gauge/instrument layout w Door pockets with wrap around hand points w Updated instrument cluster and gauges - provides more information to the driver in an intuitive format w Multi-function LCD readout: w MPG w Gear indicator (DT12 & Eaton Only) 4700 Legacy w Trip info Map Pocket w Outside temperature w Heading w Steering Wheel: w Controls for cruise control, radio, headlight on/off, 4700 Enhanced phone, LCD display Gear selection, w Hands on the wheel, eyes on the engine brake and road” steering wheel controls manual shifting w LCD Display w Steering Column:

w Adjustable w Turn signal with integrated wiper control w Shift controls (DT12) w Engine brake using the selector stalk 4700 Enhanced Map Pocket Models: 4700L/4700 ENH Models: 4700L/4700 ENH

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4: ELEC HARN INFO 4800/4900/6900

Western Star Bodybuilder Book: Revision 3.2a 1A Electrical Harness Information P. 1A-4 b Engine and ABS T.o.C. Front Wall/ Sleeper Main Chassis MAIN CAB HARNESS Harness MODULE 320 EOF LIGHTING MOD 294 AXLE WIRING INTERLOCK MOD 87B AXLE TEMP MOD 865 DIFF LOCK MOD 87A FRONTWALL HARNESS MOD 321 ENGINE HARNESS MODULE 286 / 283 MAIN CHASSIS HARNESS MOD 288 LIGHTING EXT. LIGHTS MOD 318 / 31J BEACON POWER WIRING LIGHTS Power Net Distribution MOD 327 ALTERNATOR BATTERY Box (PNDB) CABLES FORWARD ROUTINGS MOD 291 CHASSIS & MOD 125 SIGNAL POWER JUMPSTART 312 / 314 / 315 WIRING MOD 295 MOD 29A BATT CAB POWER SHUTOFF 4900 Shown MOD 926 MOD 293 Models: 4800/4900/6900 Models: 4800/4900/6900

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