Troubleshooting dynamism windows can be a daunting effort. There are a heterogeneity of altered ways a manufacturer can configure the controls, nevertheless the basics are all the duplicate. All aptitude windows call a reversible DC, or conduct contemporary, Engine and a breaker. The fundamental is to proof the switch step at the Engine.
Removing the Door Panel for Access
Gaining access to the faculty window Engine requires Emigration of the door panels. On most cars, you can determine this by removing the screws in the door pull and arm rest. Then the door panel is removed by pulling up on the panel to Proceeds the panel clips from the door.
Some makes and models again go underground screws in the backside of the panel, latest a involve near the side judgment mirror, and in the exchange cups on the panel. These screws, along with the switch housing, must be removed to Proceeds the panel from the door. Once the door panel is removed, the switches can be plugged back into the wiring harness for testing.
Testing the Switches
The easiest form to probation the switches is at the Engine harness plug, with a 12-volt blue book cloudless. Unplug the Engine and probe the harness at one of the wires. Any more impel the switch with the important on and scrutinize whether the ablaze turns on when the switch is activated. Both wires should pageantry potency, one when the switch is pushed to roll the window up, and the other when the switch is pushed for the window to bang down. Provided no bent is supplied in either plan, the most viable intention is a blown fuse. On the contrary, many times a flaccid Engine may be the explanation for the wick fuse. Alter the fuse and impel the switch with the Engine unplugged. Provided the fuse blows again, the dilemma is a short in the wiring harness and not in the Engine.
A more technical way to test is To gauge the resistance of the motor with an ohm meter and compare it to the specifications found in the service manual. Auto Zone has a service available that has many of the testing procedures and specifications for your car. Their website is at http://www.autozone.com.
Inspecting the Regulator
Many times an electric motor will develop a dead spot and the tap of a hammer will cause just enough movement to let it and operate. This is a sure indication of a bad motor, but is not a fix for it. Even though the motor now works, it will hit that dead spot again.
Testing the Motor
Here is a simple test you can perform to check for a bad motor. Make sure the fuse is good, and all the wiring is plugged back in. Then tap the motor with a hammer while holding the switch in the direction you wish the window to move.Power window problems are not limited to electric malfunctions. Many times a motor can be heard running while the window refuses to move. These types of problems are associated with the window regulator. The manufacturers have used cable or plastic tape-driven window regulators in an effort to reduce weight. While these systems are reliable, when the cable jumps off track or the tape breaks, the only fix is to replace the whole regulator. The upside is that many of these regulators come with a new motor attached. This allows some measure of prevention of other problems but raises the cost substantially. A visual inspection is all that is needed to detect a bad regulator since the door panel has already been taken off.
