2008 club car precedent MCOR diagnostics test

[tbone]

my name is tbone i just started to fix up my 2008 club car precedent i am have a problem i with the accelerator what should be the ohm on the switch as you start pushing down the pedal at about 1/2 throttle and you can fill the controller

[golfcartg]

Hey tbone, the MCOR is like the brain behind the accelerator in your Club Car Precedent. It's what translates the pressure you apply to the accelerator pedal into commands for the motor/controller. Inside, there's this tiny micro switch that's responsible for telling the solenoid when to kick in. So, when you press down on the pedal, it activates this switch, which then tells the solenoid, "Hey, time to move!" But if this little switch starts acting up or goes on strike, it can mess with your cart's mojo, leading to all sorts of wonky behavior. More on that later.

Another common problem is an inconsistent acceleration response. This can manifest as sluggish acceleration, sudden jerks or surges in speed. Additionally, erratic behavior such as sudden stops or unexpected changes in speed while driving can occur. In some cases, the cart may exhibit difficulty maintaining a steady speed or may accelerate uncontrollably. These symptoms can significantly impact the usability and safety of the golf cart, necessitating prompt diagnosis of the MCOR's throttle output. To test the throttle output of the MCOR, probe the two pins within the three pin connector where the yellow and white wires are connected. Make a note of the wire orientation before unplugging the connector for reference. To conduct the test, adjust your multimeter to the 20k ohms setting.

Look for the dial that lets you select different measurement settings on your multimeter. You're looking for the "Ω" symbol, which represents ohms, the unit used to measure resistance. Turn the dial until the display shows the "20k" setting, sometimes represented with the "k" next to the Ω symbol. Now, you're ready to measure resistance. If you haven't already, you'll need to plug the black probe into the COM (common) socket on your multimeter. This socket is typically black. Then, plug the red probe into the socket labeled with the Ω symbol. It might be red or marked with a different color to indicate it's for measuring resistance. With your multimeter set up like this, you're all set to conduct the test.

As you gradually increase the throttle from idle, observe the resistance reading, which should smoothly transition from approximately 7000 ohms to 1000 ohms. This transition should occur without abrupt changes or fluctuations. Any irregularities or readings outside of this expected range may indicate a malfunction in the MCOR. Furthermore, verify that when you hold the throttle at a specific position, the resistance reading remains consistent and stable, without any unexpected variations. By checking these resistance readings, we can decide if we need to swap out the MCOR for a new one if it's acting up.

Based on the symptoms you described, it sounds like your Club Car President might be experiencing an issue within the MCOR. Jack up the rear wheels for safety. Start by removing the rubber floormat and the plastic access door from the floor of the cart to access the MCOR wiring. Within this area, you'll locate a two pin connector and a three pin connector connected to the MCOR. First, disconnect the two pin connector. Then, using a small jumper wire, bridge the gap between the two pins of the disconnected connector. This action effectively bypasses the internal microswitch of the MCOR. If, after performing this step, the cart operates smoothly and as expected, it indicates a malfunction in the microswitch within the MCOR, necessitating its replacement to restore proper functionality to your cart's accelerator system. Feel free to ask if you have any questions