Here's what I know so far:
Q1: Are some of the connectors optional depending on the model or am I missing three that should be there? Q2: What else should I do to diagnose this myself?
Just bought vehicle so no history. Please assist. Thank you.
My car has 152000 miles.
My car has an automatic transmission.
Wire breaks are often in the door hinge area (in the rubber boot connecting the door cavity to the pillar), because the wires are frequently extended and compressed as you open and close the door. To diagnose this yourself, and also to find out if any wires pertain to options, you will need a copy of the factory wiring diagram. I cannot reproduce the diagram here but it is widely available in most large public libraries. Once you have that diagram in hand, all you need to do is a circuit trace. Using a volt ohmmeter, you start with the power source and simply trace, segment by segment, until you find the point where the interruption in each circuit (window, mirror, etc.) exists. Sometimes, you will get lucky and find that the whole issue is due to one faulty ground (or other "common denominator" issue). The foregoing is guaranteed to give you a quick result. Don’t try to do circuit tracing by happenstance or just randomly check components. To really find the trouble reasonably efficiently, you have to start at one end of the circuit, or at least at a point where you know power is supplied up to that point, and then proceed from there. You need the wiring diagram because you can typically test segment "ends"; a lot of the wiring is concealed in the body. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an electrical circuit/component diagnostic and the responding certified mechanic will get all of this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing