Toyota Yaris 2007–2008 — technical service bulletin
Bulletin TSB-0344-08 REV1 · NHTSA communication 10036930 · issued Nov 5, 2008
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007–2008
model years
2
vehicle entries
Official summary
Toyota: some model year vehicles may exhibit mil on; dtc condition with one of the following diagnostic trouble codes (dtcs)-mass air flow circuit range/performance problem; mass air flow circuit low input; mass air flow circuit high input; throttle/pedal position sensor/switch a circuit range/performance problem; insufficient coolant temperature for closed loop fuel control; coolant thermostat (coolant temperature below thermostat regulating temperature); system too rich; ignition coil # primary/secondary circuit; oxygen (a/f) sensor pumping current circuit/open; oxygen (a/f) sensor pumping c
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.