Toyota Rav4 P2122:  Symptoms, Causes + Diagnosis

P2122 is a generic OBD-II code, meaning that it has the same definition for all makes and models of vehicles, including your Toyota Rav4. P2122 indicates that the voltage coming from your Rav4’s throttle position sensor “D” is below the normal operating range.  The most common cause of this code is a bad TPS, a … Read more

Toyota Rav4 P2104: Meaning, Causes & Diagnosis

2104 is a relatively rare OBD-II trouble code. It indicates that your Toyota Rav4’s PCM has disabled the gas pedal, leaving the engine stuck at idle.  It’s a generic code, so it has the same definition no matter what type of vehicle has the code. P2104 Definition:  Throttle Actuator Control System – Forced Idle There … Read more

Toyota Rav4: P2101 Meaning, Causes + Diagnosis

P2101 is a general OBD2 trouble code. It has the same meaning for the Toyota Rav4 as it would any other vehicle. It is typically caused by wiring issues at the throttle actuator, or a bad throttle actuator itself. P2101 Definition: Throttle Actuator “A” Control Motor  – Circuit Range/Performance Throttle Actuator “A” Control Motor Circuit … Read more

Toyota Rav4 P2106:  Meaning, Causes + Diagnosis

P2106 is a somewhat uncommon OBD-II code.  It is not manufacturer-specific, so it has the same meaning for your Toyota Rav4 as it would any other vehicle. It is an indication that limp mode/failsafe mode has been activated.  There is a myriad of problems that can cause P2106.  The throttle actuator itself is rarely the … Read more

Toyota Rav4:  Bad Knock Sensor Symptoms

Modern vehicles use knock sensors to detect engine detonation.  This allows the PCM (powertrain control module) to run very aggressive spark timing.  If you are concerned that your Toyota Rav4 has a bad knock sensor, we’ve listed them out below. A knock sensor works by listening to your engine and determining if your Rav4 is … Read more

Toyota Rav4: AC Compressor Not Turning On – Diagnosis

No matter where you live if your Toyota Rav4’s AC compressor is not turning on, it can turn a pleasant commute into a nightmare (particularly if you have kids that are riding with you). The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (it’s going to depend … Read more

Toyota Rav4 U0101:  Meaning, Causes, + Diagnosis

U0101 is a generic powertrain code, which means it has the same definition for the Toyota Rav4 as it would any other vehicle.  It means that your Rav4’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the  TCM itself. U0101 … Read more

Toyota Rav4 P219B: Causes, Diagnosis, + Symptoms

P219B is a generic OBD2 trouble code.  This code indicates that your Toyota Rav4’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. Your Rav4 is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are … Read more

Toyota Rav4: P219A Meaning, Causes, & Diagnosis

P219A is a generic OBDII code.  The code indicates that your Toyota Rav4’s air/fuel ratio is out of balance (too rich or too lean). Your Rav4 is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio.   With P219A are … Read more

Toyota Rav4 U0100:  Lost Communication with ECM/PCM “A”

U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Toyota Rav4).  This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has … Read more