Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

2000 V70 XC and Charging Issue

Old 11-01-2010, 10:20 AM
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Default 2000 V70 XC and Charging Issue

I have a 2000 V70XC with 225,000 miles. I just had the engine replaced with a used motor. The ABS light was on and the speedo and odometer did not work when I picked up the car. Mechanic did not know why. I needed the car so I picked it up and started driving it. I found the battery was going dead after a few days. I had the "old" alternator put in the car but the battery is only reading 12volts when running. I consulted another shop and they told me it was my ABS control module. The ground for the alternator is somehow connected to the control module. I had the ABS control module rebuilt and my speedometer, odometer now work fine...ABS light and Check Engine lights are off. Car is still killing batteries. Anyone know why I am only getting 12 volts out of my alternator. Thanks for responding!

Old 11-05-2010, 03:44 PM
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Default Really??????

No ideas? Thanks for viewing!
Old 11-14-2010, 07:50 AM
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Location: Vermont
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Look for a ground wire not hooked up. The missing ground means the circuit that' missing it is finding another route. That route remains "on" while the car is off, draining the battery.
Old 11-26-2010, 12:23 PM
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Default Charging Issue

Mechanic resolved the problem...the alternator was only putting out 12volts because a wire on the starter looked tight but was is somehow interconnected with the alternator. Getting plenty of voltage now!
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