Toyota Aristo P0139 Engine Trouble Code

When your car's 'Toyota Aristo P0139 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

Toyota Aristo P0139 Code Meaning :

When you check Toyota Aristo car engine light came on code P0139 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Toyota manufacturer may have a different definition for the P0139 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0139 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0139 OBD-II Trouble Code The Heated Oxygen Sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) P0139 code.

Reason For P0139 Code

The reason of P0139 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

P0139 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

P0138 Previous Engine Trouble Code For Toyota Aristo

Next Engine Trouble Code For Toyota Aristo P013A