Volkswagen Routan 2009–2014 — technical service bulletin
Bulletin TT001401 · NHTSA communication 10238933 · issued Apr 25, 2014
Technical service bulletin
communication type
Electrical System
component
2009–2014
model years
6
vehicle entries
Official summary
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 ne
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.