18010 DTC Code

**b5s4tt** · 10-15-2008 07:45 PM

i was driving home before and the battery light came on and i have 12 volts indicated on the dash. i scanned the car and got

18010 P1602 Power Supply (B+) Terminal 30 Low Voltage VW
power supply terminal 30: voltage too low
p1602 - 35-10 --- intermittent

I cleaned whatever corrosion was on the battery terminal and cleared the codes. Still have battery light and 12volts only. All my grounds look secure, does any one have a suggestion. Im really hoping its not the alternator as i just bought some coils :{

**ThirdStrike** · 10-15-2008 07:47 PM

try getting your battery load tested at vatozone. could just be a cell dying in your battery

**b5s4tt** · 10-15-2008 07:48 PM

thats sucks i should have mentioned this is a 2 month old battery.

**b5s4tt** · 10-16-2008 01:44 PM

bump anyone i dont feel like buying an alternator for nothing. im testing the battery and alt rite now

**JDM EJ1 95** · 10-16-2008 02:41 PM

Sounds like an alternator.

battery wouldnt matter when driving.. unless its completely toast.

if your alternator is out and not pushing any voltage.. it will only show 12 volts(battery voltage) until that battery starts to drain. which will be soon.

although i was able to drive about 30 miles on battery alone (daytime no radio.. no accessories on at all)

go grab an oreiles alternator.. thats what i have.. been on for a year with no issues.. lifetime warranty

**b5s4tt** · 10-16-2008 04:22 PM

thank you sir. i only have 12 volts with the battery light on. i drove before and had 14volts on initial startup and for 5minutes. my friend says the brushes went bad in the alternator and it is time for a repair or replacement. im gunna check out that oreiles alternator

**gointoscott** · 10-16-2008 05:22 PM

Start it up. have it idle. take battery cable off while idling. if car stalls when you take battery cable off. it means there's something wrong with your altrnator.

just by going off what you stated, I'm betting its the alternator