However, also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. , on the other hand, uses the factory diagrams. That saves a lot of time because you don’t have to refer back to the component locator or circuit locations. redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. Pricing: - 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle - 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? If you’re tracking down a wiring issue, is the better choice. In most cases, their diagrams are right from the factory manuals. They include wiring diagrams and technical service bulletins. Get the BEST auto repair information and are professional-grade shop manuals-period. If you need to replace the window regulator, click here for instructions. Wires break most often in the hinge area of the door. If the voltage does NOT toggle, then it can only be two things: Bad switch or broken wire. If you find an open or chaffing, repair the wire and you should be back in business. Since that door is used most often, those are the wires most likely to break due to the constant flexing. If you don’t see power and ground, head for the wire bundle in the driver’s door hinge area. Grab a wiring diagram and check for power and ground coming into the master switch. If you don’t see voltage and ground at the power window electrical connector, the problem is either the master switch or a wiring harness issue. No voltage or ground at power window motor
But again, if it’s a cable regulator, replace the entire window regulator. If the motor shows no movement, it’s probably bad. If you have a cable operated regulator, replace the entire regulator. If you see movement, the regulator is usually at fault. If the motor is good, you should see some movement or hear some noise coming from the motor. Reconnect the electrical connector to the motor and try operating the window. It’s either a bad motor or a broken regulator that’s causing the motor to stall.
If you’re seeing the toggling voltage, the problem is in the window regulator. Toggle the window switch and check meter to see if it switches from +12volts to -12volts Power window voltage toggles but window doesn’t move The problem lies in the window regulator. If the meter reading toggles between +12 volts and -12volts, the switch is good. Then turn the ignition key to the RUN position. Connect the red and black probes to the two wires on the wiring harness connector you just removed. Test a power window motorĭisconnect the electrical connector from the regulator motor. If you understand the point I’ve made above if the window goes down, that confirms that wiring to the window motor is good and, in most cases it confirms the motor is good (although rare, sometimes a motor can work in one direction and not the other). Power Window goes down but not upĪside from not working at all, a power window that goes down but not up is the second most common complaint. So if the motor works in one direction just fine, but not in the other direction it’s almost NEVER the motor-it’s the switch. When you operate the up cycle, the switch reverses the polarity on those same two wires. When you operate the down cycle on your power window switch, it provides + power and – ground to the power window motor. Second: Power window motors only have two wires.
#See spark in the dark from coil pack on 99 silverado windows
When passenger windows don’t work, but the driver’s window does, chances are high that you’ve got a bad master switch in the driver’s door or a broken wire in the driver’s door hinge area. First: All the wiring for driver’s and passenger’s windows runs through the master switch.
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