# P1155 on the 2001 Toyota Highlander

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1155

- [625923](https://open.wenmarpro.com/bulletins/625923), 2001-12-11: SOME VEHICLES MAY ILLUMINATE THE CHECK ENGINE LIGHT AND SET DIAGNOSTIC TROUBLE CODES P1130, P1135, P1150, P1155, P1071 AND / OR P0174. \*JB
- [620043](https://open.wenmarpro.com/bulletins/620043), 2001-07-10: 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 REPROGRAMMED. \*TT
- [620042](https://open.wenmarpro.com/bulletins/620042), 2001-07-10: TDN MAIL MESSAGE REGARDING REPORTS THAT SOME 4\-CYLINDER VEHICLES MAY ILLUMINATE THE CHECK ENGINE LIGHT AND SET DIAGNOSTIC TROUBLE CODES \(DTC\) P1130, P1135, P1150, P1155, P0171 AND / OR P0174 WHEN OPERATED BELOW 30 DEGREES F. \*TT
- [616666](https://open.wenmarpro.com/bulletins/616666), 2001-03-07: SOME 4\-CYLINDER VEHICLES MAY ILLUMINATE THE CHECK ENGINE LIGHT AND SET DIAGNOSTIC TROUBLE CODES P1130, P1135, P1150, P1155, P0171 AND / OR P0174 WHEN OPERATED BELOW 30 DEGREES F. \*TT