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2012 Toyota Innova P1491 Fault Code Check

When you check 2012 Toyota Innova car engine light came on code P1491 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Toyota manufacturer may have a different definition for the P1491 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1491 2012 2012 Toyota Innova Code Clear

On 1999 and later P1491 2012 2012 Toyota Innova engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

2012 Toyota Innova P1491 OBD-II Diagnostic Powertrain (P) Trouble Code Description

2012 Toyota Innova car P1491 OBD-II Trouble Code Secondary Switch Solenoid Circuit Malfunction is one of the definitions for the P1491; however your vehicles manufacturer may have a different definition for the P1491 code. Please check below for you

Reason For 2012 Toyota Innova P1491 Code

The reason of 2012 Toyota Innova P1491 OBD-II Fault Code Check is P1491 Secondary Switch Solenoid Circuit Malfunction.
P1491 Code Reason


2012 Toyota Innova P1491 Possibble Fix Ways :

A failing oil pump can cause what's called oil starvation, which is almost always fatal to any engine. Overhead cam engines are especially at risk, because the cam and valve train are farther from the pump than they are in pushrod engines. Oil should be of a proper viscosity, which means it needs to be light enough to move quickly.

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P1491 2012 2012 Toyota Innova code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

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