Toyota Sequoia P0140: O2 Sensor → No Activity Detected B1S2

P0140 is a generic OBDII trouble code. It has the same meaning for any vehicle with OBDII, including the Toyota Sequoia. It means that the PCM/ECM is not detecting any activity from the sensor.  It doesn’t mean that the O2 sensor isn’t getting power, but that the voltage isn’t changing, which is the “no activity”. … Read more

Toyota Sequoia P0134: O2 Sensor → No Activity Detected B1S1

P0134 is a relatively common OBDII trouble code. It’s generic, which means that it has the same meaning for any vehicle with OBDII. It means that the PCM/ECM is not detecting any activity from the sensor.   P0134 Definition P0134: O2 Sensor → No Activity Detected →Bank 1 Sensor 1 The Sequoia’s computer uses the … Read more

Toyota Sequoia P0403:EGR→ Circuit Malfunction

P0403 is a very common trouble code. It is a generic code, which means that it has the same meaning for the Toyota Sequoia as it would any other vehicle. It affects the EGR (Exhaust Gas Recirculation System and technically means: P0403: EGR→ Circuit Malfunction A circuit malfunction implies that there is a wiring problem … Read more