Service bulletins for the 2007 Honda Fit
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.
35 on file from NHTSA, as of 2026-10-19.
About P0420 on the 2007 Honda Fit: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0420 are shown. Show all
| SB-10-015 | 2011-04-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE. HONDA: MIL COMES ON WITH DTC P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD) IS STORED. ECM/PCM MISINTERPRETS ENGINE IDLE CONDITIONS, RESULTING IN INACCURATE CONTROL OF THE FUEL AND IGNITION. REPLACE CATALYTIC CONVERTER, AND UPDATE THE PGM-FI SOFTWARE WITH HDS. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.