Service bulletins for the 2009 Volkswagen Routan
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.
356 on file from NHTSA, as of 2026-10-19.
About P0300 on the 2009 Volkswagen Routan: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
By topic
Only bulletins with trouble code: P0300 are shown. Show all
| TT001401 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM. To identify a misfiring cylinder when a random fault is set (P0300), utilize the following; Select PCM (ECM) from the module menu (figure 1). At the top of the screen, mouse over ?Monitors? to open the drop down list. Select OBD II monitors. From the OBD II monitor list (figure 2), scroll down and select ?Which cylinder is misfiring?(figure 3). A value block displaying all cylinder misfire counts can be viewed and also monitored while running to isolate the causal cylinder. Once the specific cylinder(s) have been isolated, proceed with misfire diagnosis to determine root cause and repair as necessary. |
|---|
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.