It is possible the alternator in your Honda Odyssey is working properly, but the current flow is interrupted due to a loose electrical connection, a damaged wire, or corrosion on the battery terminals. You may also have to remove the alternator and clean the ground contact area on the alternator and on the engine block. Clean the contacts with a sandpaper or wire brush. Inspect the connectors of the ground cables (battery to body, body to engine) for any signs of rust or corrosion. If the conductivity test fails, check the condition of the ground connections in your Odyssey. Do the same between the negative terminal of the battery and exposed metal part of the alternator. The reading should be at or very close to zero ohms. Touch one probe to the negative terminal of the battery, and the other probe to any exposed metal part of the engine. Take a multimeter, change its settings to ohms symbol. You can check the quality of the ground connection in Odyssey by doing a conductivity test between the negative terminal of the battery and the engine.
2003 HONDA ODYSSEY RED HOW TO
How to check if the ground connection is good? Additionally, in rare cases the contact between the engine block and the alternator can also go bad due to corrosion. When the ground is bad, the current supply from the alternator will be reduced or may fluctuate. The alternator relies on the ground connection of the engine to function properly. If the ground connection of the chassis or the engine goes bad in your Odyssey due to rust or corrosion, you will face all sorts of electrical issues, including battery light illuminating in the dashboard. What happens when the ground connection goes bad? For this purpose, a ground strap/wire is used to connect the engine and the chassis. The engine also requires a ground connection to function, but the way the engine is mounted, it does not allow the electric current to flow between the engine and the body (due to non-conductive rubber insulated engine mounts). The negative terminal of the battery is connected to the body/chassis of Odyssey, called a ground connection. Poor ground connection What is a ground connection? When the battery charge gets too low the engine will shut down, and you will be stranded. The battery charge will go down as you drive since all the on-board electronic controllers and accessories are now solely powered by the battery. Yes, you can drive your Odyssey with a bad alternator, but only for a short distance. Can you drive Odyssey with a bad alternator? If you see numbers between 13.5 volts and 14.8 volts with no major fluctuations when you turn on the accessories in the vehicle, the alternator is functioning properly. If the voltage drops below 12 volts with the engine running and the accessories turned on, it means the current supply from the alternator is completely cut off and all the electronics are solely powered by the battery.If it drops and remain below 13.5 volts, it indicates a problem with the current supply from the alternator. The voltage should remain around 14 volts.
2003 HONDA ODYSSEY RED FULL
Connect the black cable of the multimeter to negative terminal of the battery, and the red cable to the positive terminal.The easiest method to check the alternator is by measuring the voltage at the battery terminals when the engine is running. Before replacing the alternator, you must rule out other causes that may stop or degrade flow of current from the alternator, for example: bad electrical connection or damaged wire. Alternators can fail at any time, but generally they last over 100,000 miles.
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