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Service bulletin PB1688-3

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11016193
Published by NHTSA2025-04-01
Manufacturer's numberPB1688-3
Manufacturer's date2024-06-05
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Damaged engine harness connectors can cause unit operating problems. Discussion: For non-warrantable units only – the following individual replacement connectors with wire leads are available to splice into the existing engine harness. Using these connectors eliminates the need to replace the entire engine harness when only a connector is found to be faulty.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
THERMO KING PRECEDENT S-600
THERMO KING PRECEDENT S-600M
THERMO KING PRECEDENT S-610DE
THERMO KING PRECEDENT S-700
THERMO KING PRECEDENT S-750I

Listing a model year does not mean every vehicle of it is concerned: the document says which.