Toyota Highlander 2001 — technical service bulletin
Bulletin TE0014 · NHTSA communication 620043 · issued Feb 12, 2001
Technical service bulletin
communication type
Electrical System
component
2001
model years
1
vehicle entries
Official summary
Subject regarding electronic control unit (ecu) reprogramming support. Certain 2001 four cylinder vehicles, if driven at temperatures below 30 degrees f, may display a malfunction indicator lamp (mil) and store one or more of the following diagnostic trouble codes: p0171, p0174, p1130, p1133, p1150, or p1155. If these codes are set, air / fuel ratio sensors, bank one, sensor one and bank two, sensor one are likely damaged and both sensors will need to be replaced. To avoid damaging the replacement air / fuel ratio sensors during cold weather driving these vehicles will need their ecu reprogram
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.