P1139 OBD Trouble Code
1 result found
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | HO2S Insufficient Switching |
| Location | Bank 1 Sensor 2 |
| Cause | No PCM codes set, Low Coolant Level not on, test not completed this vehicle trip, then the PCM detected that less than 20 HO2S-12 R/L and L/R transitions occurred in a 120 second period in the test |
Try also: https://www.obd-codes.com/p1139
