Lexus IS 300 P0320: Meaning, Causes, & Diagnosis

P0320 is a relatively common ignition-related trouble code. P0320 indicates that your Lexus IS 300’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 Lexus IS 300, use individual coil … Read more

Lexus IS 300: P0717 Meaning, Causes, & Diagnosis

P0717 is a somewhat rare OBD2 trouble code that can occur in the Lexus IS 300.  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 … Read more

Lexus IS 300 P0846: Meaning, Causes, + Diagnosis

P0846 is a relatively common trouble code.  While your Lexus IS 300’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, … Read more

Lexus IS 300 P0841: Meaning, Causes, + Diagnosis

P0841 is a relatively common trouble code.  While your Lexus IS 300’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 … Read more

Lexus IS 300 P0882:  Meaning, Causes + Diagnosis

P0882 is a generic DTC trouble code, which means it has the same meaning for the Lexus IS 300 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 … Read more

Lexus IS 300 P0868: Meaning, Causes, & Diagnosis

P0868 is a generic DTC code, which means it has the same definition for the Lexus IS 300 as it would any other vehicle.  This particular code indicates that the transmission fluid pressure is below the minimum operating specs. If your IS 300 has P0868 the first thing you should do is check the transmission … Read more

Lexus IS 300 P0715: Symptoms, Causes, & Diagnosis

P0715 is a generic, and somewhat rare OBDII trouble code.  If your Lexus IS 300 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 … Read more

Lexus IS 300 P0688: Meaning, Causes, + Diagnosis

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 Lexus IS 300. The most common causes of P0688 are a bad PCM power relay or a wiring issue between the PCM … Read more

Lexus IS 300 P0685: Meaning, Causes, + Diagnosis

P0685 is a somewhat rare OBDII trouble code. It’s a general code, so it has the same meaning for the Lexus IS 300 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 IS 300 not to start, … Read more

Lexus IS 300 P0661: Meaning, Causes, & Diagnosis

P0661 is a relatively rare OBD2 trouble code.  It indicates that the electrical reading coming from your Lexus IS 300’s intake manifold tuning valve control circuit (on the bank 1 side) is below its specified operating range. While P0661 is a generic code, so it has the same definition for all vehicles. P0661 Definition: Intake … Read more