The Kenworth turn signal stalk service manual, publication KM815060, covers the Turn Signal Stalk and Turn Stalk Module (TSM) fitted to the 2005 interior on W900, T600, T800, T800W and C500 models. This 10-page electrical document gives the system design, components, operation and troubleshooting steps a technician needs before making service repairs to the turn signal circuit.
Identifying the 2005 interior — Kenworth turn signal
Kenworth began production of the 2005 interior on 06/27/2005, though some pilot trucks were built earlier. The manual explains that a chassis with the new interior can be identified either by appearance or by searching ECAT for the instrument panel control unit, part number Q21-1029. Confirming the interior generation first matters, because the module-based Kenworth turn signal stalk is wired differently from the older discrete-switch design and needs a different diagnostic approach.
What the TSM manual explains — Kenworth turn signal
The document describes how the Turn Stalk Module processes turn signal, hazard and related lighting inputs, and it lays out the diagnostic sequence for faults in that circuit. The manual advises that, before attempting repairs, the technician should be knowledgeable about the system design, components, operation and troubleshooting procedures for diagnosing turn signal and related faults.
- System design and component overview
- Operation of the turn signal stalk and Turn Stalk Module
- Step-by-step troubleshooting of turn signal and hazard faults
Using the manual
A sound workflow is to verify the interior generation, confirm the instrument panel control unit part number, then follow the module diagnostics before replacing the Kenworth turn signal stalk assembly. Because the TSM centralises the lighting logic, swapping the stalk without first testing the module often fails to fix the fault and wastes a part.
Document details manual information
Issued by Kenworth Customer Service as KM815060, dated 07/13/05, this manual sits in the Electrical section and applies to the 2005-interior models above. Manufacturer and dealer information is available at the official Kenworth website. Companion electrical manuals are listed 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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