2000 Honda Odyssey Van -
This may be a rather lengthy post but I wanted to be complete and see if anyone has had this problem or could steer me in the right direction:
Problem: The Battery, Brake and all Door Lights all flicker intermittently. When this occurs, the alternator stops putting out voltage and the system voltage drops to battery voltage (12 volts).
What I have done: I have replaced the following components: Battery, Alternator (rebuild from parts house, not OEM), Electrical Load Detector (ELD), Powertrain Control Module (used PCM flashed at dealership), Ignition Switch. After replacing each component, the problem persists without any change in the flashing lights.
I have subscribed to ALLDATA to find wiring diagrams and checked all grounds in the engine compartment and under the dash.
I have monitored voltage readings at the alternator output, the 4 wire input plug and the cigarette lighter with the following observations:
The alternator output goes to12 Volts at times. When this occurs the lights may flash but not always.
The lights never flash when the alternator is putting out voltage.
The BLK/YEL wire on the alternator input plug seems to fluctuate up and down a lot.
I have seen the cigarette lighter and BLK/YEL wire go to 12 volts when the alternator shows 14+ volts.
I have seen the rebuilt alternator output fluctuate between 14 and as high as 18 volts at times but is mostly steady at 14.8 volts.
The Van has 360K miles on it and a couple of years ago had the heads reworked. Runs great.....except for this issue. Only let me down once when it died due to the alternator not charging during this problem. This has been going on now for close to a year. The car does not owe me another trip to work but I hate to giver her up for this issue. Kind of like ditching an old friend at this point.
Any HELP would be GREATLY appreciated!
Thanks - Piv
This may be a rather lengthy post but I wanted to be complete and see if anyone has had this problem or could steer me in the right direction:
Problem: The Battery, Brake and all Door Lights all flicker intermittently. When this occurs, the alternator stops putting out voltage and the system voltage drops to battery voltage (12 volts).
What I have done: I have replaced the following components: Battery, Alternator (rebuild from parts house, not OEM), Electrical Load Detector (ELD), Powertrain Control Module (used PCM flashed at dealership), Ignition Switch. After replacing each component, the problem persists without any change in the flashing lights.
I have subscribed to ALLDATA to find wiring diagrams and checked all grounds in the engine compartment and under the dash.
I have monitored voltage readings at the alternator output, the 4 wire input plug and the cigarette lighter with the following observations:
The alternator output goes to12 Volts at times. When this occurs the lights may flash but not always.
The lights never flash when the alternator is putting out voltage.
The BLK/YEL wire on the alternator input plug seems to fluctuate up and down a lot.
I have seen the cigarette lighter and BLK/YEL wire go to 12 volts when the alternator shows 14+ volts.
I have seen the rebuilt alternator output fluctuate between 14 and as high as 18 volts at times but is mostly steady at 14.8 volts.
The Van has 360K miles on it and a couple of years ago had the heads reworked. Runs great.....except for this issue. Only let me down once when it died due to the alternator not charging during this problem. This has been going on now for close to a year. The car does not owe me another trip to work but I hate to giver her up for this issue. Kind of like ditching an old friend at this point.
Any HELP would be GREATLY appreciated!
Thanks - Piv
