Advice On Wiring Up A Csr Electric Waterpump

Wiring diagram as suggested...
Dagram is shown with the ignition switch in the RUN position.

I agree, if the engine is running, the water pump should be on. A toggle is a recipe for disaster.

Wiring may seem daunting, but like noobz said, it's all about the planning. Plan it well and it's actually kinda easy. Just takes some patience and research.

If wiring isn't your thing, you most certainly have another car buddy who can help

That diagram is about as easy as it gets. It'slike a crayola treasure map. Start at one end and trace the lines straight to the other side.

Since you have said that you have a low level of proficiency in electrical matters, here's some help before you get started.

Automotive circuits are mostly simple stuff: a power source, a connection path, a control device, a load, and a ground.
The battery/alternator is the positive power source.
The wire and fuses are the connection path.
Control devices are switches, relays and sensors.
A load is a light, motor, solenoid, relay coil or heater element.
In automotive circuits, grounds are the return path so the electrical power can flow from the load to the negative side of the power source.
Electricity flows like water:
Voltage is like pressure,
Current in amps is like volume,
Resistance is like the kink you put in a garden hose to decrease the pressure or volume.
Power is pressure multiplied by volume or voltage multiplied by current (amps)

Digest that, and you just got the first 3 days of Electricity 101.

Use some jumper wires (connection path and ground) to hook up a switch (control device), a battery (power source), a light bulb (load). Now make the light turn on and off with the switch.

That's the electrical lab for the first week of Electricity 101.

For free automotive electrical training, see Automotive Training and Resource Site . I have personally reviewed the material and it is very good. If you are new to automotive electrical troubleshooting, I highly recommend you spend a hour or so going through the material. You'll save at least that much time troubleshooting problems.


Using a Multimeter
Almost every meter has a different method for showing an open circuit. An open circuit is one with a break in it somewhere. That break can be a switch turned off, a fuse blown, a lamp burned out, a bad connector, a damaged circuit board or a cut or burned wire.

Without reading the instruction manual that came with your meter, I would not try to guess what your readings mean.

Step 1.) Find the instruction book that came with your Multimeter or DVM. Read it and familiarize yourself with how it works and how use it. If you lost the book or didn’t get one with it, do a Google search on the web to find the manufacturer’s web site & download a copy of the manual. Remember that while some meters auto-range to find the correct voltage range, the Ohms function ranges are usually set by the selector switch. Most of the resistance testing done in automotive troubleshooting uses the lowest Ohms range possible.

Step 2. ) Make sure that you know what test lead plugs into which jacks on the Multimeter or DVM. There are usually several different jacks on most Multimeters, and they have different functions. Make sure that your battery(s) in the Multimeter or DVM are good: if you have any doubts, replace the battery(s).

Step 3.) Once you are sure that the Multimeter or DVM is functional and you have the leads plugged into the jacks for Ohms ( the Ω symbol), do some simple measurements to make sure that you know how to use it correctly. Set the switch to the lowest range and touch the leads together: you should not see “nothing” but you should see 0.3-1.0 ohms. Measure a 60 watt light bulb: cold it will measure about 17.5 Ohms. It you measure it while it is hot, the reading will be greater.

Step 4.) Make several test measurements using the ohms function and the DC volts function. Remember all resistance measurements must be done with the power off the circuit. This avoids false readings and possible damage to the ohmmeter.. Repeat steps 3 & 4 until you are sure that you can do it without making any mistakes.

Step 5.) Then see | Repair Guides | Understanding And Troubleshooting Electrical Systems | Basic Electrical Theory | AutoZone.com and carefully study ALL the information under the Heading Chassis Electrical, Basic Electricity – Understanding & Troubleshooting

Step 6.) Apply what you have learned and make the test measurements using the information in the wiring diagrams & my previous posts.

Don't be in too much of a hurry to bolt all the new, pretty, shiny parts together. Take the simple steps now and you will save yourself lots of time and trouble later.