my Honda CR-V battery light is on what should I check

Solution

1. Preparation

• Gather necessary tools and parts.
• Safety: Disconnect the negative battery terminal before starting any work to prevent electrical shorts.

2. Inspect and Clean Battery Connections

1. Remove the battery cables, starting with the negative terminal followed by the positive terminal.
2. Clean the battery terminals and cable connectors using a wire brush and a solution of baking soda and water to neutralize any corrosion.
3. Reconnect the battery cables, ensuring they are tight and secure.

3. Test and Replace Battery (if necessary)

1. If the multimeter shows a voltage below 12.4 volts, perform a load test.
2. If the battery fails the load test, replace it with a new battery that meets the manufacturer's specifications.
3. Ensure the new battery is correctly installed, connecting the positive terminal first followed by the negative terminal.

4. Check and Replace Alternator (if necessary)

1. If the alternator voltage is below 13.7 volts while running, it may need replacement.
2. Disconnect the battery again.
3. Remove the serpentine belt by loosening the tensioner pulley.
4. Unbolt the alternator from its mounting bracket and disconnect the electrical connections.
5. Install the new alternator by reversing the removal steps and reconnecting the battery.

5. Inspect and Replace Serpentine Belt (if necessary)

1. If the serpentine belt is worn or damaged, remove it during alternator replacement.
2. Install a new serpentine belt, ensuring it is routed correctly according to the belt routing diagram.