Service bulletin 120615

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.

NHTSA's summary

SUBJECT DME Erroneous Super-knocking Faults. When decelerating with the engine speed dropping from 5,000 rpm to 4,500 rpm, one of the following erroneous super-knocking faults may be stored in the DME: z FC 152108 - Super-knocking in cylinder 1; injection cut-off z FC 152208 - Super-knocking in cylinder 2; injection cut-off z FC 152308 - Super-knocking in cylinder 3; injection cut-off Always in conjunction with FC 152D08 (Super-knocking, injection cut-off). These stored faults do not cause any drivability complaints or engine warning lights. The fault codes are detected during diagnosis for unrelated work. CAUSE DME software error.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

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

Fuel system, Fuel injection

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

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