If it indicates an open diode, the alternator is bad. The ripple or AC volts is too high.
Replace the alternator.
Roy
REMOVAL
1. Disconnect the battery ground cable.
2. Remove the air intake tube.
3. Relieve the accessory drive belt tension and move the belt off the generator pulley.
4. Raise the vehicle.
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5. Remove the front lower splash shield.
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6. Remove the top nut and through bolt.
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7. Remove the bolts.
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8. Turn the generator slightly to access the generator positive cable nut and remove the nut.
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9. Lower the generator slightly and disconnect the electrical connector.
10. Remove the generator.
Rotate the generator to gain access for removal.
Remove the generator.
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Sunday, February 21st, 2021 AT 7:14 PM
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