Service bulletin 40-0001
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11025661 |
| Published by NHTSA | 2025-11-24 |
| Manufacturer's number | 40-0001 |
| Manufacturer's date | 2025-11-21 |
| Campaign id or software version | CAM0187 |
| NHTSA component | ELECTRICAL SYSTEM; ENGINE |
NHTSA's summary
The term KL50, originates from the German DIN 72552 standard for automotive electrical terminal designations. It specifically refers to the starter control circuit. This is the wire that carries the positive signal (+12V or +24V, depending on the system) to the starter motor's solenoid when the ignition key is turned to the "start" position or a start button is pressed. A KL50 error message is a general term for any malfunction within this critical engine cranking circuit.
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, Engine
| TERBERG TAYLOR AMERICAS YT SERIES | 2025 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.