Toyota Highlander P1504 Engine Error Code

When you check Toyota Highlander car engine light came on code P1504 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Toyota manufacturer may have a different definition for the P1504 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

On 1999 and later P1504 Toyota Highlander 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.

Toyota Highlander P1504 OBD-II Diagnostic Powertrain (P) Trouble Code Description Toyota Highlander car P1504 OBD-II Trouble Code Intake Air Control Circuit Malfunction is one of the definitions for the P1504; however your vehicles manufacturer may have a different definition for the P1504 code. Please check below for your speci Reason For Toyota Highlander P1504 Code The reason of Toyota Highlander P1504 OBD-II Engine Error Code is P1504 Intake Air Control Circuit Malfunction.

There are currently two main types of cylinder deactivation used today, depending on the type of engine. P1504 Toyota Highlander code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.

Toyota Highlander P1504 Possible Solution :

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

What does fault code P1504 mean for Toyota Highlander ? What does a diagnostic reading P1504 mean for Toyota Highlander ? How to fix OBD2 Code P1504 for Toyota Highlander ? What do we know about P1504 code for Toyota Highlander ?