MECHANIC'S CORNER: Isuzu D-Max Power Window Problem

Checking the wiring of the power window

This week a 2012 Isuzu D-Max came in complaining that the rear left power window was not functioning. So to diagnose the problem, the side panel of the door was removed to reveal the power window mechanism as seen on the picture.

The first thing that was inspected was the wiring and whether there was a supply of current to the power window. Upon inspection, it was found that there was no problem with the wiring.

The next step was to check the motor itself. There seems to be no physical damage but once the mechanic started banging on it, the motor began to operate. Based on experience, dirt may accumulate in the motor which would hamper it's operations. So banging on the motor would shake loose the dirt and allow it to work like normal.

Motor is dirty and just needs to be shaken loose

Cleaning the rubber channel

Provided that the root cause of the problem was the dirt that accumulated, cleaning the motor along with the rubber channel of the window was done to remedy the situation. As seen above, the motor was shaken loose of dirt and the picture below shows the mechanic cleaning the interiors of the channel utilizing a WD-40 solution to make the window clean and operate smoothly.