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Service bulletin 99870

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 id606221
Published by NHTSA1999-08-13
Manufacturer's number99870
Manufacturer's date1999-06-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's summary

INFORMATION ON NEW ENGINE ELECTRONIC CONTROL UNIT (EECU) FAULT CODES. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Ignition

Vehicles listed
VOLVO VNL1997
VOLVO VNM1999
VOLVO WG1999

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