P0401 Toyota Code Definition Insufficient EGR Flow Symptoms Check Engine Light will illuminate In most cases, there are no adverse conditions noticed by the driver In some cases, there may be performance problems, such as pinging on acceleration, when the engine is under load or when driving the vehicle at higher speeds Possible Problems: Restriction…
Trouble Code: P0420 Volkswagen – Catalyst System Efficiency Below Threshold
P0420 Volkswagen Code Definition Catalyst System Efficiency Below Threshold Symptoms: Check Engine Light will illuminate In most cases, there are no adverse conditions noticed by the driver In some cases, there may be some performance problems noticed by the driver such as a lack of power from a restricted and/or damaged Catalytic Converter Possible Problems:…
How can I do if I Can’t Read OBD-II Codes?
The most common cause of not being able to read OBD-II codes is a blown fuse. To locate your car’s fuse box. The location is in your owner’s manual. This one’s underneath the hood. Lift the cover and find your ECM fuse you can check it with a test light. Hook the test light up…
How does the OBD-II diagnostic software work?
To start communicating with your car, you need to have ELM327-based adapter and a OBDII compliant car. Just connect the OBD-II adapter to the physical 16-pin OBD connector plug located near the dashboard (typically below the streering wheel), launch the OBD-II software, and you are ready to go. The connection between the interface and the software…
What is OBD-II software?
On-Board Diagnostics, or OBD-ii, is a computer-based system built into modern automobiles that monitors emission related controls, performance of the engine, and detects malfunctions. OBD-II systems provide access to the health information of a vehicle and access to numerous parameters and sensors from the Engine Control Unit. The OBD-ii system offers valuable information, including diagnostic…
What does your cars vehicle OBD-II compliant?
All cars and light trucks built and sold in the United States after January 1, 1996 were required to be OBD-II equipped. In general, this means all 1996 model year cars and light trucks are compliant, even if built in late 1995. All gasoline vehicles manufactured in Europe were required to be OBD-II compliant after…
Trouble Code: P0420 – Catalyst System Efficiency Below Threshold
P0420 Code Definition Catalyst System Efficiency Below Threshold Symptoms Check Engine Light will illuminate In most cases, there are no adverse conditions noticed by the driver In some cases, there may be some performance problems noticed by the driver such as a lack of power from a restricted and/or damaged Catalytic Converter Possible Cause: Inefficient…
Trouble Code: P0745 – Pressure Control Solenoid Malfunction
P0745 Code Definition Pressure Control Solenoid Malfunction What does this mean? The purpose of the automatic transmission is to match the engine’s optimum power and torque characteristics to the driver’s desired rate of acceleration and speed by auto-selecting different gear ratios or ‘speeds’ to power the wheels. The Pressure Control Solenoid controls the hydraulic pressure…
Trouble Code: P0600 – Serial Communication Link Malfunction
P0600 Code Definition PCM Serial Communication Link Malfunction What does this mean? The PCM or Power Train Control Module performs many vital functions in a modern vehicle, such as management of the Fuel System, Ignition System, Transmission, Anti-Lock Brake and Traction Control systems. The Serial Communication Link enables the control modules to ‘talk ‘ to…
Trouble Code: P0141 – Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
Trouble Code: P0141 – Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) P0141 Code Definition The Catalyst Monitoring Oxygen Sensor evaluates the rear most Catalytic Converter’s emissions-reducing capability. Code P0141 is set when the Rear Oxygen Sensor does not show signal activity indicative of closed loop fuel system operation within the required time. Symptoms:…
Trouble Code: P0102 – Mass or Volume Air Flow Circuit Low Input
P0102 Code Definition Mass or Volume Air Flow Circuit Low Input What does this mean? The Mass Airflow Sensor (MAF) measures the amount of air entering the engine and the Engine Control Module (ECM) uses the information to determine the proper amount of fuel quantity and ignition timing. P0102 Code sets when the ECM detects…
Trouble Code: P0432- Main Catalyst Efficiency Below Threshold (Bank 2)
Trouble Code: P0432- Main Catalyst Efficiency Below Threshold (Bank 2) P0432 Code Definition: P0432 Code indicates that the Bank 2 Main Catalytic Converter’s emissions efficiency has fallen below the minimum allowable limit. This threshold is tracked by a Catalyst Monitoring Oxygen Sensor located on or near the outlet of the Catalytic Converter. Symptoms: Check Engine…
Trouble Code:P0731 – Gear 1 Incorrect Gear Ratio
P0731 Code Definition Gear 1 Incorrect Ratio What does this mean? The purpose of the automatic transmission is to match the engine’s optimum power and torque characteristics to the driver’s desired rate of acceleration and speed by auto-selecting different gear ratios or ‘speeds’ to power the wheels. P0731 Code When the P0731 code is set…
Trouble Code:P0400 – Exhaust Gas Recirculation Flow Malfunction
P0400 Code Definition Exhaut Gas Recirculation Flow Malfunction Why does this matter? NOx gases, which cause acid rain and severe respiratory problems, are formed whenever engine combustion temperatures are too high (2500° F). EGR (Exhaust Gas Re-Circulation) systems are used to reduce the combustion temperature, thus reducing NOx formation. What does this mean? When the computer…
How To Fix The P0300 OBD-II Code?
In a car, a P0300 OBD-II code could mean that there is a misfiring of a cylinder in your vehicle’s engine. It doesn’t tell you which cylinder though. Check your spark plugs, coil pack, fuel injector, oxygen sensor, catalytic converter, burned exhaust valve, camshaft position sensor, blocked or stuck EGR passage or valve and it…
How to fix Toyota OBD-II Code P0446 P0442 P0440 P0441?
If you are getting the obd-ii Code P0440, P0441, P0442, P0446 Please follow: 1. Make sure the gas cap is ON (and “clicks” ) and is the correct Toyota Gas Cap (aftermarket may not work). Clear the codes and run for a while. See if codes come back. 2. Make sure the tube to the…
How To fix P0352 Code?
Replace the ignition coil(s).
Trouble Code: P0352 – Ignition Coil “B” Circuit Primary/Secondary Malfunction
P0352 Code Definition: Ignition Coil “B” Circuit Primary/Secondary Malfunction What does this mean? The ignition coil or coils are responsible for igniting the air/fuel mixture inside the combustion chambers. Without reliable performance from the ignition coil(s) the vehicle will stumble and misfire. P0352 Code indicates there’s an electrical problem in either the primary ( the…
Trouble Code: P0717 – Input/Turbine Speed Sensor Circuit No Signal
P0717 Code Definition Input/Turbine Speed Sensor Circuit No Signal What does this mean? The purpose of the automatic transmission is to match the engine’s optimum power and torque characteristics to the driver’s desired rate of acceleration and speed by auto-selecting different gear ratios or ‘speeds’ to power the wheels. P0717 Code is triggered when the…
Trouble Code: P0720 – Output Speed Sensor Circuit Malfunction
P0720 Code Definition Output Speed Sensor Circuit Malfunction What does this mean? When the P0720 code is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is not seeing a rational speed signal from the Output Sensor or, there is a greater than specified RPM difference between the rotational speed of…