{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
0
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Select your vehicle

LaSalle Voltage Regulators

Refine by:
See All

Shop Catalog

Showing 1 - 15 of 477 results
Display item:
15
30
45
Sort by:
Voltage Regulator - Direct Fit, Sold individually
Replacement
Voltage Regulator - Direct Fit, Sold individually
Part Number: REPF541401
Vehicle Info Required to Guarantee Fit
$25.49
Product Details
Notes : 4 Blade Terminal Type; 60-AmperesWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : VR166T, 4626, 4628, 4630, 4631, 4636, 271689, 271701, 1770708, 3227716, 3229408, 6810105, 8130365, 12309104, 12309975, 12327405, 19106583, 1V1030, 1V1031, 2VR2, 5K7, 7L6, C3SZ10316A, C3SZ10316B, C3TF10316B, C4TF10316B, C4TF10316D, C5AF10316B, C5AZ10316C, C8TF10316A, D3TZ10316A, D4HF10316AA, D4HZ10316A, D4TZ10316A, D8BF10316AA, D8BZ10316A, D8VF10316AA, D8VZ10316A, D9PF10316AA, D9PF10316AB, D9PZ10316A, D9VF10316AB, E1PF10316AA, E2AF10316AA, E2PF10316AA, E2PF10316BA, E2PZ10316A, E2TF10316AAReplaces OE Number : 4626, 4628, 4630, 4631, 4636, 271689, 271701, 1770708, 3227716, 3229408, 6810105, 8130365, 12309104, 12309975, 12327405, 19106583, 1V1030, 1V1031, 2VR2, 5K7, 7L6, C3SZ10316A, C3SZ10316B, C3TF10316B, C4TF10316B, C4TF10316D, C5AF10316B, C5AZ10316C, C8TF10316A, D3TZ10316A, D4HF10316AA, D4HZ10316A, D4TZ10316A, D8BF10316AA, D8BZ10316A, D8VF10316AA, D8VZ10316A, D9PF10316AA, D9PF10316AB, D9PZ10316A, D9VF10316AB, E1PF10316AA, E2AF10316AA, E2PF10316AA, E2PF10316BA, E2PZ10316A, E2TF10316AA, E2TZ10316AAProduct Fit : Direct FitReturns Policy : 30-Day Return Policy
Voltage Regulator - Direct Fit, Sold individually
Replacement
Voltage Regulator - Direct Fit, Sold individually
Part Number: RM54140001
Vehicle Info Required to Guarantee Fit
$10.80
Product Details
Warranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Deals : OverstockInterchange Part Number : 1197311242, 0021549206Replaces OE Number : 0021549206Product Fit : Direct FitReturns Policy : 30-Day Return Policy
Voltage Regulator - Direct Fit, Sold individually
Replacement
Voltage Regulator - Direct Fit, Sold individually
Part Number: REPV541401
Vehicle Info Required to Guarantee Fit
$21.00
Product Details
Notes : Blade type; 2-prong male terminalWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Product Fit : Direct FitReturns Policy : 30-Day Return Policy
V10-77-1019 Voltage Regulator - Replaces OE Number 06B903803B
Vemo®
V10-77-1019 Voltage Regulator - Replaces OE Number 06B903803B
Part Number: Z8YV10771019
Vehicle Info Required to Guarantee Fit
$105.99
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 028903029R, 028903029QX, 038903803K, 06B903803, 06B903803A, 06B903803B, 06B903803C, 078903803C, 38903803K, 6B903803, 6B903803A, 6B903803B, 6B903803C, 78903803C, 12427516175, 7516175, 038903803J, 077903803, 28903029R, 38903803J, 5U0903803A, 77903803, 03C903803, 059903803DReplaces OE Number : 028903029R, 028903029QX, 038903803K, 06B903803, 06B903803A, 06B903803B, 06B903803C, 078903803C, 38903803K, 6B903803, 6B903803A, 6B903803B, 6B903803C, 78903803C, 12427516175, 7516175, 038903803J, 077903803, 28903029R, 38903803J, 5U0903803A, 77903803, 03C903803, 059903803DRecommended Use : OE ReplacementProduct Fit : Direct Fit
V30-77-0010 Voltage Regulator - Direct Fit, Sold individually
Vemo®
V30-77-0010 Voltage Regulator - Direct Fit, Sold individually
Part Number: Z8YV30770010
Vehicle Info Required to Guarantee Fit
$37.49
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 00A903803, 00A903803A, 05133774AA, K05133774AA, 5761.85, 5761.86, 95644488, 95644494, 3544570, 9944423, 9950401, 0021548106, 0021548206, 0021548506, 0021548706, 0021549206, 0022159106, 002154850664, 0031540606, 0031540706, 0031542306, 0081548302, 0081548402, 008154830280, 008154840280, 008154840281, 0091543002, 0091543502, 0091545802, 0091545902, 009154020283, 009154300287, 0101544702, 0101545402, 010154470283, 1197311213, A0021548106, A0021548206, A0021548506, A0021548706, A0021549206Replaces OE Number : 00A903803, 00A903803A, 05133774AA, K05133774AA, 5761.85, 5761.86, 95644488, 95644494, 3544570, 9944423, 9950401, 0021548106, 0021548206, 0021548506, 0021548706, 0021549206, 0022159106, 002154850664, 0031540606, 0031540706, 0031542306, 0081548302, 0081548402, 008154830280, 008154840280, 008154840281, 0091543002, 0091543502, 0091545802, 0091545902, 009154020283, 009154300287, 0101544702, 0101545402, 010154470283, 1197311213, A0021548106, A0021548206, A0021548506, A0021548706, A0021549206Recommended Use : OE ReplacementProduct Fit : Direct Fit
V20-77-0299 Voltage Regulator - Direct Fit, Sold individually
Vemo®
V20-77-0299 Voltage Regulator - Direct Fit, Sold individually
Part Number: Z8YV20770299
Vehicle Info Required to Guarantee Fit
$59.49
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 12317501752, 12317559183, 7501752, 7559183Replaces OE Number : 12317501752, 12317559183, 7501752, 7559183Recommended Use : OE ReplacementProduct Fit : Direct Fit
V10-77-1048 Voltage Regulator - Replaces OE Number 070903803E
Vemo®
V10-77-1048 Voltage Regulator - Replaces OE Number 070903803E
Part Number: Z8YV10771048
Vehicle Info Required to Guarantee Fit
$40.04
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 06F903803, 06F903803A, 06F903803AX, 06F903803B, 070903803B, 070903803E, 070903803EX, 078903803E, 078903803EX, 078903803EV, 6F903803, 6F903803A, 6F903803AX, 6F903803B, 78903803E, 78903803EX, F00M144175, F00MA45300, 0001542905, 0031545206, 0031546606, 0031549006, 0031549706, 003154900664, 1542905, 31545206, 31549006, A0001542905, A0031545206, A0031546606, A0031549006, A0031549706, A003154900664, 2310069T61, 048903803, 70903803B, 70903803E, 70903803EXReplaces OE Number : 06F903803, 06F903803A, 06F903803AX, 06F903803B, 070903803B, 070903803E, 070903803EX, 078903803E, 078903803EX, 078903803EV, 6F903803, 6F903803A, 6F903803AX, 6F903803B, 78903803E, 78903803EX, F00M144175, F00MA45300, 0001542905, 0031545206, 0031546606, 0031549006, 0031549706, 003154900664, 1542905, 31545206, 31549006, A0001542905, A0031545206, A0031546606, A0031549006, A0031549706, A003154900664, 2310069T61, 048903803, 70903803B, 70903803E, 70903803EX
V30-77-1023 Voltage Regulator - Sold individually
Vemo®
V30-77-1023 Voltage Regulator - Sold individually
Part Number: Z8YV30771023
Vehicle Info Required to Guarantee Fit
$79.99
Vehicle Fitment
  • 2009 Mercedes Benz ML350 Base All Engines
  • 2008 - 2009 Mercedes Benz R350 Base 6 Cyl 3.5L
  • 2007 - 2011 Mercedes Benz S550 Base All Engines
  • 2007 - 2009 Mercedes Benz ML350 4Matic All Engines
  • 2007 - 2009 Mercedes Benz R350 4Matic All Engines
  • 2007 - 2011 Mercedes Benz E63 AMG Base 8 Cyl 6.3L
  • 2007 - 2009 Mercedes Benz GL450 Base 8 Cyl 4.7L
  • 2007 - 2011 Mercedes Benz CLS550 Base All Engines
  • 2009 - 2015 Mercedes Benz G550 Base All Engines
  • 2007 - 2011 Mercedes Benz CLS63 AMG Base 8 Cyl 6.3L
  • 2007 - 2011 Mercedes Benz S550 4Matic 8 Cyl 5.5L
  • 2008 - 2011 Mercedes Benz E550 4Matic All Engines
  • 2014 - 2015 Mercedes Benz C63 AMG Base All Engines
  • 2008 Mercedes Benz CLK63 AMG Base 8 Cyl 6.3L
  • 2008 - 2010 Mercedes Benz C300 4Matic Luxury All Engines
  • 2007 - 2009 Mercedes Benz ML63 AMG Base 8 Cyl 6.3L
  • 2011 Mercedes Benz ML63 AMG Base 8 Cyl 6.3L
  • 2007 Mercedes Benz CLK63 AMG Base All Engines
  • 2007 - 2009 Mercedes Benz SL550 Base All Engines
  • 2011 - 2012 Mercedes Benz SL550 Base All Engines
  • 2010 - 2011 Mercedes Benz E550 Base 8 Cyl 5.5L
  • 2008 - 2009 Mercedes Benz E550 Base All Engines
  • 2008 - 2009 Mercedes Benz GL550 Base All Engines
  • 2010 Mercedes Benz E350 4Matic All Engines
  • 2011 - 2013 Mercedes Benz C63 AMG Base 8 Cyl 6.3L
  • 2012 Mercedes Benz C63 AMG Black Series All Engines
  • 2009 - 2009 Mercedes Benz SL63 AMG Base 8 Cyl 6.3L
  • 2011 - 2012 Mercedes Benz SL63 AMG Base 8 Cyl 6.3L
  • 2010 Mercedes Benz S400 Hybrid All Engines
  • 2008 - 2010 Mercedes Benz C300 4Matic Sport All Engines
  • 2008 - 2009 Mercedes Benz ML550 Base All Engines
  • 2008 Mercedes Benz CLK63 AMG Black Series All Engines
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 0031546806, 003154680680, A0031546806, A003154680680Replaces OE Number : 0031546806, 003154680680, A0031546806, A003154680680
V10-77-1014 Voltage Regulator - Replaces OE Number 028 903 803 F X
Vemo®
V10-77-1014 Voltage Regulator - Replaces OE Number 028 903 803 F X
Part Number: Z8YV10771014
Vehicle Info Required to Guarantee Fit
$29.90
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Deals : OverstockPromotions : European Vehicle PartsInterchange Part Number : 028903803F, 028903803FX, 030903023AA, 030903023EV, 030903023FV, 030903023GV, 030903023GX, 030903023QV, 030903023QX, 037903023A, 050903017H, 078903803A, 078903803B, 30903023AA, 30903023EV, 30903023FV, 30903023GV, 30903023GX, 30903023QV, 30903023QX, 37903023A, 50903017H, 1437340, 1437734, 1735578, 1735788, 1739435, 12311437340, 12311735788, 12311739435, 12312243561, 12312243561E, 12312244342, 12312244626, 12312244884, 12317789332, 12321739435, 12511437734, 2244342, 2244462, 2244626, 2244884Replaces OE Number : 028903803F, 028903803FX, 030903023AA, 030903023EV, 030903023FV, 030903023GV, 030903023GX, 030903023QV, 030903023QX, 037903023A, 050903017H, 078903803A, 078903803B, 30903023AA, 30903023EV, 30903023FV, 30903023GV, 30903023GX, 30903023QV, 30903023QX, 37903023A, 50903017H, 1437340, 1437734, 1735578, 1735788, 1739435, 12311437340, 12311735788, 12311739435, 12312243561, 12312243561E, 12312244342, 12312244626, 12312244884, 12317789332, 12321739435, 12511437734, 2244342, 2244462, 2244626, 2244884Recommended Use : OE ReplacementProduct Fit : Direct Fit
V10-77-1077 Voltage Regulator - Replaces OE Number 07K 903 803
Vemo®
V10-77-1077 Voltage Regulator - Replaces OE Number 07K 903 803
Part Number: Z8YV10771077
Vehicle Info Required to Guarantee Fit
$58.99
Vehicle Fitment
  • 2012 Audi Q5 Premium 4 Cyl 2.0L
  • 2012 Audi A4 Quattro Base 4 Cyl 2.0L
  • 2012 Audi A4 Base 4 Cyl 2.0L
  • 2012 Audi A5 Quattro Cabriolet 4 Cyl 2.0L
  • 2012 Audi A4 Quattro Avant 4 Cyl 2.0L
  • 2012 Audi A5 Cabriolet 4 Cyl 2.0L
  • 2012 Audi A5 Quattro Base 4 Cyl 2.0L
Product Details
Warranty : 24-month or 24,000-mile limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsSeries : OE Replacement SeriesInterchange Part Number : 06E903803F, 07K903803, 0031548406, 0031549306, 0031549706, 003154930664, A0031548406, A0031549306, A0031549706, A003154930664, 07K9030803Replaces OE Number : 06E903803F, 07K903803, 0031548406, 0031549306, 0031549706, 003154930664, A0031548406, A0031549306, A0031549706, A003154930664, 07K9030803
V10-77-0001 Voltage Regulator - Replaces OE Number 068 903 803 DX
Vemo®
V10-77-0001 Voltage Regulator - Replaces OE Number 068 903 803 DX
Part Number: Z8YV10770001
Vehicle Info Required to Guarantee Fit
$6.78
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Deals : OverstockPromotions : European Vehicle PartsInterchange Part Number : 116100506008, 11610050600811, 116100506011, 11610050600800, 119130506000, 11913050600023, 119130506023, 60743997, 60752016, 7056848, 705684800000, 9047100, 9941761, 9950116, 9950612, 92860314201, 9947100, 0269038033, 0289038033, 034903803, 049903803G, 068903803, 068903803B, 068903803D, 068903803DX, 068903803A, 147977, 269038033, 289038033, 49903803G, 68903803A, 68903803DX, 68903803, 68903803B, 68903803D, J2700004010, 1271644, 1271664, 1279548, 1711139, 1711391, 1711399, 1722755, 1726002Replaces OE Number : 116100506008, 11610050600811, 116100506011, 11610050600800, 119130506000, 11913050600023, 119130506023, 60743997, 60752016, 7056848, 705684800000, 9047100, 9941761, 9950116, 9950612, 92860314201, 9947100, 0269038033, 0289038033, 034903803, 049903803G, 068903803, 068903803B, 068903803D, 068903803DX, 068903803A, 147977, 269038033, 289038033, 49903803G, 68903803A, 68903803DX, 68903803, 68903803B, 68903803D, J2700004010, 1271644, 1271664, 1279548, 1711139, 1711391, 1711399, 1722755, 1726002Recommended Use : OE ReplacementProduct Fit : Direct Fit
J8125176 Voltage Regulator - Direct Fit, Sold individually
Crown®
J8125176 Voltage Regulator - Direct Fit, Sold individually
Part Number: J8125176
Vehicle Info Required to Guarantee Fit
$18.49
Product Details
Warranty : 1 year or 12,000-mile Crown limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 8125176, 8983300084Recommended Use : OE ReplacementProduct Fit : Direct Fit
V10-77-0016 Voltage Regulator - Replaces OE Number 028903803D
Vemo®
V10-77-0016 Voltage Regulator - Replaces OE Number 028903803D
Part Number: Z8YV10770016
Vehicle Info Required to Guarantee Fit
$31.99
Product Details
Warranty : 24-month or 24,000-mile Vemo limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsInterchange Part Number : 2174825, 9943986, 9944659, 9944827, 9946659, 9947103, 9947418, 9950561, 9950830, 021903803B, 028903025HV, 028903025QV, 028903028L, 028903028LV, 028903028LX, 028903803B, 028903803C, 028903803D, 028903803DX, 030905241A, 038903803D, 050903017A, 054903803, 054903803A, 078903803, 38903803D, 1247892, 1730604, 1739365, 1747920, 12311247892, 12311730604, 12311739365, 12311747920, 12317739365, 1231173936, 7739365, 571697, 5761.97, 576196, 3544570, 9944857, 9950337, 42531176, 9947830, 0021548502Replaces OE Number : 2174825, 9943986, 9944659, 9944827, 9946659, 9947103, 9947418, 9950561, 9950830, 021903803B, 028903025HV, 028903025QV, 028903028L, 028903028LV, 028903028LX, 028903803B, 028903803C, 028903803D, 028903803DX, 030905241A, 038903803D, 050903017A, 054903803, 054903803A, 078903803, 38903803D, 1247892, 1730604, 1739365, 1747920, 12311247892, 12311730604, 12311739365, 12311747920, 12317739365, 1231173936, 7739365, 571697, 5761.97, 576196, 3544570, 9944857, 9950337, 42531176, 9947830, 0021548502Recommended Use : OE ReplacementProduct Fit : Direct Fit
C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACC635
Vehicle Info Required to Guarantee Fit
$65.49
Product Details
Notes : Internal regulatorWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 89058245Recommended Use : OE ReplacementProduct Fit : Direct Fit
C645 Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
C645 Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACC645
Vehicle Info Required to Guarantee Fit
$95.49
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
Page 1 of 32 | Showing 1 - 15 of 477 results

Top Rated Products

Replacement Voltage Regulator - Direct Fit, Sold individually
$10.80( Review)
Great quality
Kareem L.
VERIFIED PURCHASER
Replacement Voltage Regulator - Direct Fit, Sold individually
$25.49( Review)
perfect part, perfect fit, arrived quickly, great price!
Jonathan F.
VERIFIED PURCHASER

Product Questions & Answers

AC Delco C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
$65.49
Q:Can this model handle 100 amps at 12 volts?
KENNETH N.
A:BEST ANSWERHi Kenneth, I'm glad to assist you. No. Its operating ampere rating is from 42 to 62 ampere maximum rating. Upon checking, we do not carry the voltage regulator with a 100-ampere rating. Show less
Jeonino E.
 
3 Questions, 1 AnswerView all Q&As >

Helpful Automotive Resources

Where is the Voltage Regulator Located on an Alternator?
Where is the Voltage Regulator Located on an Alternator?Since about 2000, most platforms have the voltage regulation built into the PCM, so you might or might not have a voltage regulator on your vehicle. Bear in mind that the exact location of the voltage regulator will vary from vehicle to vehicle. If you’re struggling to find your voltage
Why Is My Battery Light On?
Why Is My Battery Light On?The battery light can be working properly yet you can still have a bad alternator, so the battery light only indicates total failure.
P2503 Code: Charging System Voltage Low
P2503 Code: Charging System Voltage LowDiagnostic trouble code (DTC) P2503 stands for “Charging System Output Low.” The code is set once the PCM detects that the battery voltage falls below its expected voltage for a certain number of seconds. The charging system relies on the alternator, which generates alternating current (AC) and converts it to direct