P0320 is a relatively common ignition-related trouble code. P0320 indicates that your Toyota Highlander’s ignition/distributor engine speed circuit is malfunctioning. P0320 is most likely caused by the engine speed sensor, or a wiring issue. P0320 Definition: Ignition/Distributor Engine Speed – Input Circuit Nearly all modern vehicles, including the Toyota Highlander, use individual coil packs which … Read more
P0717 is a somewhat rare OBD2 trouble code that can occur in the Toyota Highlander. While it illuminates the check engine light, the code warns of a transmission-related error, specifically that the input shaft/turbine speed sensor is not sending a signal. P0717 is a generic code (it has the same meaning for any vehicle made … Read more
P0601 is a somewhat rare OBD2 trouble code. It’s a generic code (it has the same meaning for the Toyota Highlander as it would any other vehicle). While it indicates that the PCM’s memory failed a memory check, P0601 is commonly seen when people use OBD2 port plugin accessories on their vehicle. These accessories are … Read more
P0846 is a relatively common trouble code. While your Toyota Highlander’s check engine light will come on, P0846 is a transmission-related trouble code, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0846 has the same definition for any vehicle made for the 1996 model year and up. Before doing anything, check … Read more
P0841 is a relatively common trouble code. While your Toyota Highlander’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0841 has the same definition for any vehicle made for the 1996 model year and … Read more
P0882 is a generic DTC trouble code, which means it has the same meaning for the Toyota Highlander as it would any other vehicle. While this code sets the check engine light, it is actually warning you of an issue with the TCM transmission control module, specifically that the power input signal is too low. … Read more
P0868 is a generic DTC code, which means it has the same definition for the Toyota Highlander as it would any other vehicle. This particular code indicates that the transmission fluid pressure is below the minimum operating specs. If your Highlander has P0868 the first thing you should do is check the transmission fluid. If … Read more
P0715 is a generic, and somewhat rare OBDII trouble code. If your Toyota Highlander has P0715, it indicates there is a communication error with the sensor that measures transmission input speed. Common Causes: A bad transmission speed sensor, shift solenoid, wiring issues, and even low/no transmission fluid can all cause P0715. P0715 Definition: Input/Turbine Speed … Read more
P0688 is a relatively rare OBD2 trouble code. It’s a generic code, meaning that it has the same definition for any vehicle made for the 1996 model year and up. This includes the Toyota Highlander. The most common causes of P0688 are a bad PCM power relay or a wiring issue between the PCM and … Read more
P0685 is a somewhat rare OBDII trouble code. It’s a general code, so it has the same meaning for the Toyota Highlander as any other vehicle. It indicates that the circuit that provides power to the PCM is not functioning properly. Most of the time, P0685 will cause your Highlander not to start, which leaves … Read more