Paccar Kenworth T170 Hybrid 2011, Builder'S Manual

Page: 129 / 179

Section 8
Electrical
8-1
12/11
ELECTRICAL
Information in this section will cover the following topics:
• Overview of Kenworth’s 2010 multiplex instrumentation for Medium Duty Trucks
• Access instructions for the dash, gauges, and switches
• Wiring instructions for alarm and telltale (warning lights)
• Reconfiguring telltale cards
• Spare Switches (standard and adding)
• Spare Relays
• Remote PTO/Throttle harness
• Electrical wire number and color
• Trailer cable connections
• After-treatment Control Modules
MULTIPLEx INSTRUMENTATION
Kenworth utilizes Multiplex instrumentation and wiring to continuously improve our quality and the capability of our trucks.
Multiplexing utilizes the industry standard Society of Automotive Engineering (SAE) J1939 data bus to send multiple
signals over a single twisted pair of wires instead of individual wires for each function. The advantages are fewer wires,
sensors, and connections that provide greater consistency, improved reliability and the ability to use ESA to troubleshoot
the instrumentation. The following information is provided to increase your awareness about the Kenworth product, it may
be useful in installing telltales (warning lights) and gauges and coordination with other installed equipment .
Don’t cut or tap into green/yellow twisted pairs. Only use “T” connectors, and only add
approved J1939 components with validated software.
FIGURE 8-1.
J1939 Data Link Wiring . Data Bus Access Location: LH side rear of engine .
J1939 Data Link Extension P92-3422 available from PACCAR Parts
WARNING!