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Home >> Acura >> 2015 >> MDX Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transaxle - Service, Testing And Troubleshooting (Except Hybrid) >> Description & Operation >> A/T System Description - Shift Lock System
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A/T System Description - Shift Lock System

Shift Lever Assy. 

The shift lever is floor positioned straight 5 position (P, R, N, D, S) type. The shift lever equips the shift lock function to prevent the miss-handling when selecting the position.

Also, the parking pin switch is used for one of the key interlock system and installed on the shift lever, and sends the parking position signal (lever is in P position) to the MICU (Multiplex Integrated Control Unit). The MICU controls that the ignition key can be pulled out from the key cylinder only when the shift lever is in P position.

GHH315817Courtesy of HONDA, U.S.A., INC.

Shift Lock System 

The shift lock system prevents the shift lever from miss shifting. The shift lock solenoid is usually OFF. After starting the engine in P, the shift lever cannot move to any other position from P because the shift lock stop stops the lock pin unless pressing the brake pedal. When the brake pedal is pressed and the accelerator pedal is not pressed, the shift lock solenoid is ON; the shift lock solenoid plunger in the shift lock solenoid pulls the shift lock stop to release the lock pin. Then push the shift lever button, and the shift lever can move to any other position. When the brake pedal and the accelerator pedal are pressed at the same time, the shift lock system is not unlocked.

GHH315818Courtesy of HONDA, U.S.A., INC.

Shift Lock Release 

When the shift lock system does not operate for a mechanical or electrical trouble, you can unlock the shift lock temporarily by inserting the ignition key into the shift lock release hole and pressing the shift lock release. The shift lock release is pressed, the shift lock stop releases the lock pin, and the shift lever can move to any other position.

GHH315819Courtesy of HONDA, U.S.A., INC.