The Kenworth tail lamp wiring reference, diagram P94-1466, is the connector-information chart for the park and tail lamp circuit on new-interior trucks. It is a table rather than a procedure, naming each connector in the exterior lighting harness together with its cavity count, part number and physical location, so a technician can go straight to the plug that matters.
How the chart is laid out — Kenworth tail lamp
Rows run from J01 through J15, each with a reference designator, part number and plain-language location. J01 is a 3/8-inch ring terminal inside the base of the PD box, while J02 is a 29-cavity black Deutsch HDP20 at the base of the PD box on the engine side. J06 is a 22-cavity natural Packard Weather Pack in the firewall on the cab side, and firewall ground studs J12 and J13 are called out on both the engine and cab sides.
Connectors behind the switches — Kenworth tail lamp
What makes this Kenworth tail lamp wiring chart useful is that it locates the connectors sitting behind each dash switch, which is exactly where lighting faults are diagnosed:
- J08 — black Eaton M/P 630 behind the headlamp switch
- J09 — black Eaton M/P 630 behind the park lamp switch
- J10 — black Eaton M/P 630 behind the fog lamp switch
- J15 — Delphi 16-way timer, unsealed, at the gauge panel
Why the chart is useful
When a marker or tail lamp goes dark on a new-interior chassis, this chart points straight to the connector to back-probe, whether it sits behind a dash switch, in the firewall Packard Weather Pack, or in the LH frame rail under the cab. That saves the technician from pulling trim and tracing colour codes across the whole truck.
Applicability and source
Used this way, the Kenworth tail lamp wiring chart cuts diagnosis time on a dark marker or tail lamp to minutes. Diagram P94-1466 is the new-interior counterpart to the earlier PD-box lighting print and should be matched to the truck by build before use. Kenworth issues these lighting drawings through its dealer network; brand information is on the Kenworth site. Find companion prints in the DiagTechPro manuals library.
Applies to these truck models
This is the manufacturer document shared across 4 model families. It applies to:
- Kenworth C5
- Kenworth T6
- Kenworth T8
- Kenworth W9
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