Air & Electrical Systems – Section #1A Section 1A Harness Information Dash Mount Navigation/Camera Prep Cutoff Switches Power Net Distribution Box (PNDB) Power Distribution Module (PNDB) RX Module 2007 Star Gauges 2010 Star Gauges 2010 J1939 Connections Fuse & Relay Blocks In Cab Body Builder Connections 4700 with PDM 4700 Cab Electrical Pass Through Details Additional Switch Package Optional Switch Types Optional Switch Facings WST Air System Air Line Numbering Air System - In Cab Schematic All LHD Utility Lights Lighting Modifications WST Tail Light Configurations 48/49/6900 WST Tail Light Configurations 4700 New 1A-1 1A-2 1A-3 1A-4 1A-5 1A-6 1A-7 1A-8 1A-9 1A-10 1A-11 1A-12 1A-13 1A-14 1A-17 1A-18 1A-20 1A-21 1A-22 1A-23 1A-25 1A-26 Air and Electrical Systems Version - Rev (2.3) This guide is to be used as a reference document only.

Please consult your Western Star CAE representative on specific spec’ing needs as the information contained in this document can change without notice. Rev (2.3) - Feb 2015

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Electrical Overview TRANSMISSION WIRING Engine and ABS 34B TRANSFER CASE MODULE Front Wall/ Sleeper Main Chassis Harness 376 AUXILIARY TRANSMISSION MODULE MAIN CAB HARNESS MODULE 320 MOD 294 34C / 352 MODULE EOF LIGHTING AXLE WIRING INTERLOCK MOD 87B AXLE TEMP MOD 865 FRONTWALL HARNESS MOD 321 TRAILER ENGINE HARNESS MODULE 286 / 283 WIRING PRIMARY TRAILER CBL ADDITIONAL MOD 296 LIGHTING MAIN CHASSIS HARNESS PRIMARY MOD 303 MOD 318 / 31J EXT.

LIGHTS MOD 288 SUPPLEMENTAL BEACON CABLE MOD 308 ADDITIONAL LIGHTS MOD 327 SUPPLEMENTAL FORWARD CHASSIS & Power Net Distribution Box (PNDB) MOD 334 SIGNAL 312 / 314 315 / 310 POWER WIRING BATTERY MOD 372 / 885 PTO ALTERNATOR ROUTINGS CABLES MOD 291 MOD 125 POWER JUMPSTART WIRING MOD 29A MOD 295 CAB POWER BATT SHUTOFF MOD 293 MOD 926 Page 1A-1 Rev (2.3) - Feb 2015

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Dash Mount Device Prep 1U1-001 TOP OF DASH NAVIGATION PREP WITH POWER AND GROUND Dash Mount Device Prep Western Star now offers a Top dash mount Navigation Prep. This new option provides a standard bolt pattern in the dash for a 1” RAM ball mount system or other camera mount equipment. These mountings allow customers to quickly mount a variety of electrical devices ranging from navigation systems to cell phone holders in a road legal and easily accessible location without drilling the dash. Mounting solutions for most devices can be found on the RAM websit. Navigation and Camera systems can be consistently mounted to factory installed mounts with no cab modifications.

This industry leading solution allows customers to easily upgrade to new systems as fast as they become available to the market. The Nav prep system is superior to in dash navigation as it allows owners or drivers to easily add their own devices such as Iphones for hands free and navigation or full navigation and backup systems. Todays technolodgy is moving quicker than in dash systems can keep up with. Using the Western Star Navigation prep your equipment can be easily upgraded to the latest hardware in minutes.

12V power Std RAM ball mount pattern 1 7/8” dia 22.8mm dia 120° Nav System Mounted using RAM Mounting Adapters Shown Below 50 mm dia 3/16” dia 10-32 3/16” dia 10-32 AWTI Camera Mounted using common mounting pattern Dash Power Schematic RAM B-201CHU RAM B-202CHU Dash Mounted Power Receptical Mates to Main Fuse Block Mates to Front Wall Ground Stud Plate RAM B-201 RAM B-202U Page 1A-3 Rev (2.3) - Feb 2015

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Top of Dash Mount Navigation Prep Main Cab PNDB Connector Plug #23-13153-307 Positive Disconnect Switch 1 The disconnect switch system for 2010 has been reconfigured to provide better application coverage and provide for two levels of power disconnect based on the options ordered with the truck. 2 3 4 In-cab disconnect switches are offered in “locking” or “non-locking” configuration. Exterior battery mounted switches will be offered in the locking configuration only. Cutoff switches are equipped with red LED lights, which are illuminated when power is on. X1, Main PNDB Trucks equipped with the body builder auxiliary power system will have an additional LED light on the switch. Note: 1.

Both PNDB units will be deactivated when the switch is in the off position. 2. Positive disconnect switches do not isolate the starter. Negative Disconnect Switch The negative disconnect switch option is for use in emergency and dangerous goods applications only. This option provides a battery box disconnect between the starter and the batteries.

This option is currently only available with Detroit Diesel engine configurations Lockout Tab Auxiliary Power and Main Power LED Axillary Body Builder Cutoff Switch Standard Cutoff Switch Standard Power LED 293-058/-060 -061 Positive Disconnect Switch / 293-057 Negative Battery Box Switch Page 1A-4 Rev (2.3) - Feb 2015 293-058 POSITIVE LOAD DISCONNECT W/CAB MOUNTED CONTROL SWITCH MOUNTED OUTBOARD DR SEAT 293-060 POSITIVE LOAD DISCONNECT W/CAB MTD CONTROL SW W/LOCKING PROVISION MOUNTED OUTBOARD DR SEAT 293-061 POSITIVE LOAD DISCONNECT W/BATTERY BOX CONTROL SWITCH WITH LOCKING PROVISION 293-057 NEGATIVE LOAD DISCONNECT FOR DDC ENGINES WITH BATTERY BOX DISCONNECT SWITCH

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