P0740 is one of the most common transmission trouble codes. It means that the Echo‘s computer has detected that there is an issue with the torque converter clutch (TCC) solenoid circuit. P0740: Torque Converter Clutch Circuit Malfunction The TCC “locks” the drivetrain, which allows for a true mechanical connection between the transmission … Read more
P0330 is a powertrain OBDII trouble code that has the same meaning for the Toyota Echo as it would any other vehicle. By definition, it means that the vehicles ECM/PCM isn’t getting the proper signal from the knock sensor. Clearing this code typically requires a new knock sensor. The second most common cause is … Read more
P0405 is a generic OBDII trouble code. It deals with the signal coming from the EGR system. Since it is a generic code, it has the same meaning for the Toyota Echo as it would any other vehicle. The EGR system allows a certain amount of the Echo’s exhaust to re-enter the combustion chamber, … Read more
P0175 is a common trouble code that can appear in the Toyota Echo. It’s generic, so it has the same meaning for your car as it would any other automobile. There are MANY issues that can cause P0175 in the Echo. If there are other codes present, use them to eliminate potential causes and save … Read more
One of the most common trouble codes with the Toyota Echo is P0174. It indicates that your Toyota Echo is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more
A common trouble code with the Toyota Echo is P0172. This code number references a number given to you when you plug your car into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Toyota Echo … Read more
P0161 is a very common OBDII code that occurs in the Toyota Echo. It is typically caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 2 sensor 2. Replacing the Oxygen sensor will fix the problem a majority of the time. Some of the other causes of P0161 … Read more
P0138 is a common OBDII code that occurs in many vehicles, including theToyota Echo. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself There are also some less likely problems … Read more
P0137 is a fairly common OBDII code that occurs in the Toyota Echo, it’s a general code. This means that it has the same meaning for any vehicle. This code is supposed to let you know that there is an issue with the wiring or harness going to the sensor, or the sensor itself is … Read more
P0136 is a common OBDII code that occurs in the Toyota Echo. It is typically caused when the O2 Sensor voltage is not within normal operating range. Bank one will be the side of the engine with cylinder 1 in the firing order. Toyota Echo P0136 Symptoms Often, the only symptom of P0136 … Read more