Daughter board communication error
Posted: Wed Jun 07, 2006 4:15 pm
This is caused by low battery voltage. Generally the battery on its own should be able to crank the engine at 250 rpm with at least 10 volts while cranking. If not:
- Check the alternator is changing. A multimeter across the battery with the engine running should read 14 volts
- Relocated batteries often have an unacceptable voltage drop from the battery to the starter motor, even with car stereo type thick cabling.
- Consider using a higher capacity battery. The common Odyssey / Hawker Energy batteries do not crank very well, especially if they have been deeply discharged (even once). Consider using the stock battery. If you want to use lightweight battery, use the Braille battery, which has the same or bettery cranking than a stock battery.
- For engine swaps, check the alternator wiring.
- Check the alternator is changing. A multimeter across the battery with the engine running should read 14 volts
- Relocated batteries often have an unacceptable voltage drop from the battery to the starter motor, even with car stereo type thick cabling.
- Consider using a higher capacity battery. The common Odyssey / Hawker Energy batteries do not crank very well, especially if they have been deeply discharged (even once). Consider using the stock battery. If you want to use lightweight battery, use the Braille battery, which has the same or bettery cranking than a stock battery.
- For engine swaps, check the alternator wiring.