Service bulletin 6WT98
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 | 601062 |
| Published by NHTSA | 1998-06-24 |
| Manufacturer's number | 6WT98 |
| Manufacturer's date | 1998-03-01 |
| NHTSA component | ELECTRICAL SYSTEM:IGNITION:MODULE |
NHTSA's summary
ALLISON TRANSMISSION HAS DETERMINED THAT ELECTRICAL TRANSIENT VOLTAGE SIGNALS PRESENT ON THE VEHICLE CHASSIS CAN CAUSE WTEC ELECTRONIC CONTROL UNIT (ECU) DIAGNOSTIC CODES. THEREFORE, A CHASSIS ISOLATION KIT HAS BEEN DEVELOPED TO AID IN ISOLATING THE ECU. *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
| ALLISON TRANSMISSION |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.