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The mass air flow or Mass Air FlowMAF sensor is placed in the intake air duct between the air filter and the engine intake manifold. The MAF sensor measures the amount of intake air flow. The Mass Air FlowMAF sensor converts the air flow measurement into a voltage or frequency signal, with the voltage or…

Trouble Code: TOYOTA P0171 System Too Lean Bank 1 Likely Cause: The MAF (Mass Air Flow) Sensor is dirty or faulty There could be a vacuum leak downstream of the MAF sensor Possible cracked vacuum or PCV line/connection Faulty or stuck open PCV valve Failed or faulty oxygen sensor (bank 1, sensor 1) Sticking/plugged or…

Trouble Code: P0037 – HO2S Heater Control Circuit Low Bank 1 Sensor 2 Likely Cause: – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 – Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse – Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted – Heated Oxygen Sensor (H2OS) Bank…

Trouble Code: Nissan P0340 – Camshaft Position Sensor Circuit Bank 1 Likely Cause: – Faulty Camshaft Position Sensor – Camshaft Position Sensor harness is open or shorted – Camshaft Position Sensor circuit poor electrical connection – Faulty starter motor – Starting system circuit – Dead (Weak) battery Notes: Nissan models with distributor the camshaft position…

Trouble Code: P0420 Toyota – Catalyst System Efficiency Below Threshold Bank 1 System: – Three way catalyst converter Bank 1 – Exhaust tube – Intake air leaks – Fuel injectors may be faulty – Fuel injector leaks – Spark plugs may be faulty – Improper ignition timing – Engine Control Module (ECM) Notes: As the…

If you have to re-charge and over gas, to re-set on the MMI system, specifically: MMI / CAR keys / Tire Pressure Monitoring / Storage tire pressure

Please check the engine management system fault codes. When the engine management system of a component (e.g., flow meter) failure, the computer uses the default value instead of the actual value control, which can cause problems with the gearbox and the transmission system matching the fault code set.

1. external device to read.(OBD-II Code scanner tool). 2. manual removal, automatically cleared.

On a static reading ( just turn on the ignition switch, do not start the engine ) and dynamic reading ( need to start the engine ) electronic control systems , attention should read both the order and the relevant code conversion process , otherwise it will cause reading the failure to take fault codes…

Ignition switch is turned on but do not start the engine, the control computer will begin to enter the initial state, and the entire control system for self-examination, the fault indicator is lit. If the fault indicator is not lit, it indicates a fault line fault indicator should be checked and repaired. Turn the ignition…

Clear the fault codes should be strictly in accordance with the provisions of any particular vehicle fault codes clear approach to, and must not simply arbitrarily remove the battery negative ground wire way to clear the fault code. Otherwise, it may result in the following two aspects of trouble: 1. make certain to lose control…

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Supported Languages: Japanese, German, English, French, Italian, Portuguese, Russian, Turkish, Spanish, Traditional Chinese Attention: This Launch x431 PAD cannot be updated online for USA. If you are in USA,  you can buy UK VPN to update it on official launch website. Or we can update it to the latest software version before we send it…

Causes: – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure – Faulty Fuel injector – Intake air leaks – Faulty Air Flow Meter Notes: If one or more sensors are replaced the Engine Control Module (ECM) Mixture Ratio Self-Learning clearing…

Causes: – The vehicle is new from the factory. – Battery or Powertrain Control Module (PCM) had recently been disconnected. – An OBD-II monitor failure occurred before completion of an OBD-II drive cycle. – PCM Detected Trouble Codes (DTC) have recently been cleared with a scan tool. Notes: This code just means that the PCM…

  Causes: – Low transmission fluid level – Dirty transmission fluid – Faulty Shift Solenoids – Shift Solenoids harness is open or shorted – Shift Solenoids circuit poot electrical connection – Transmission mechanical problems – Transmission hydraulic control circuit Notes: Start by inspecting the transmission fluid level and condition, and change fluid if necessary. When…

Causes: – Leaking or stuck open thermostat – Low engine coolant level – Insufficient warm up time – Faulty engine coolant temperature sensor – Engine coolant temperature sensor harness is open or shorted – Engine coolant temperature sensor circuit poor electrical connection Notes: If cooling system is not leaking and the fluid level is OK,…

Causes: – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 – Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse – Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted – Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection – Faulty Engine Control Module (ECM) Notes:…

Causes: – Faulty power transistor unit built into ignition coil – Ignition primary circuit is open or shorted (circuit to ignition coils) – Ignition primary circuit poor electrical connection (circuit to ignition coils) – Faulty ignition system condenser – Crankshaft position sensor circuit Notes: The most common cause that will trigger the Nissan P1320 code…

Use this device you can READ and WRITE the flash data stored in the ECU. The stored data, called MAPS are responsible for things like injection timings, ignition advance, torque limiter, speed limiter and many more. By using this tool with the software provided you can read the MAPS and REWRITE the values to increase…