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HOMESERVICE MANUALSCHEVROLET2025TAHOE COMMERCIAL, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSBATTERY, STARTING SYSTEM AND CHARGING SYSTEM - SPECIFICATIONSSPECIFICATIONSPARASITIC DRAW REFERENCE TABLE (STANDARD (ATO, ATC) FUSES)
2025 Chevrolet Tahoe Commercial, 4WD

Parasitic Draw Reference Table (Standard (ATO, ATC) Fuses)

2025 Chevrolet Tahoe Commercial, 4WDSECTION Parasitic Draw Reference Table (Standard (ATO, ATC) Fuses)
NOTE:
  • Refer to this table ONLY if you have been directed here from the Battery Electrical Drain/Parasitic Load Test due to an active Parasitic Draw.
  • Circuit Current Across Fuse mA (milliAmps).
  • The mA values listed in the tables below are estimated based on the voltage drop across the different fuse designs.
  • Some fuses that may have an initial voltage drop then drop off, is normal.
  • Some fuses that always have a nominal draw going to components that supply memory retention is normal.
  • Use the parasitic draw reference tables along with the wiring schematics to determine the excessive draw.
Standard (ATO, ATC) Fuse Voltage Drop

mV Black 1 Amp (mA) Grey 2 Amp (mA) Violet 3 Amp (mA) Pink 4 Amp (mA) Tan 5 Amp (mA) Brown 7.5 Amp (mA) Red 10 Amp (mA) Blue 15 Amp (mA} Yellow 20 Amp (mA) Clear 25 Amp (mA) Green 30 Amp (mA) Blu-Green 35 Amp (mA) Orange 40 Amp (mA)
0.1 1 2 3 4 6 9 13 21 30 40 51 62 69
0.2 2 4 6 9 11 18 26 42 59 79 102 124 139
0.3 2 6 10 13 17 27 39 63 89 119 152 186 208
0.4 3 7 13 18 22 37 52 83 118 159 203 248 278
0.5 4 9 16 22 28 46 65 104 148 198 254 311 347
0.6 5 11 19 26 34 55 78 125 178 238 305 373 417
0.7 6 13 23 31 39 64 91 146 207 278 355 435 486
0.8 7 15 26 35 45 73 104 167 237 317 406 497 556
0.9 7 17 29 39 50 82 117 188 266 357 457 559 625
1 8 19 32 44 56 92 130 208 296 397 508 621 694
1.1 9 21 35 48 62 101 143 229 325 437 558 683 764
1.2 10 22 39 53 67 110 156 250 355 476 609 745 833
1.3 11 24 42 57 73 119 169 271 385 516 660 807 903
1.4 11 26 45 61 78 128 182 292 414 556 711 870 972
1.5 12 28 48 66 84 137 195 313 444 595 761 932 1042
1.6 13 30 51 70 90 147 208 333 473 635 812 994 1111
1.7 14 32 55 75 95 156 221 354 503 675 863 1056 1181
1.8 15 34 58 79 101 165 234 375 533 714 914 1118 1250
1.9 15 36 61 83 106 174 247 396 562 754 964 1180 1319
2 16 37 64 88 112 183 260 417 592 794 1015 1242 1389
2.1 17 39 68 92 118 192 273 438 621 833 1066 1304 1458
2.2 18 41 71 96 123 202 286 458 651 873 1117 1366 1528
2.3 19 43 74 101 129 211 299 479 680 913 1168 1429 1597
2.4 20 45 77 105 134 220 312 500 710 952 1218 1491 1667
2.5 20 47 80 110 140 229 325 521 740 992 1269 1553 1736
2.6 21 49 84 114 146 238 338 542 769 1032 1320 1615 1806
2.7 22 50 87 118 151 247 351 563 799 1071 1371 1677 1875
2.8 23 52 90 123 157 257 364 583 828 1111 1421 1739 1944
2.9 24 54 93 127 162 266 377 604 858 1151 1472 1801 2014
3 24 56 96 132 168 275 390 625 888 1190 1523 1863 2083
3.1 25 58 100 136 174 284 403 646 917 1230 1574 1925 2153
3.2 26 60 103 140 179 293 416 667 947 1270 1624 1988 2222
3.3 27 62 106 145 185 302 429 688 976 1310 1675 2050 2292
3.4 28 64 109 149 190 312 442 708 1006 1349 1726 2112 2361
3.5 28 65 113 154 196 321 455 729 1036 1389 1777 2174 2431
3.6 29 67 116 158 202 330 468 750 1065 1429 1827 2236 2500
3.7 30 69 119 162 207 339 481 771 1095 1468 1878 2298 2569
3.8 31 71 122 167 213 348 494 792 1124 1508 1929 2360 2639
3.9 32 73 125 171 218 357 506 813 1154 1548 1980 2422 2708
4 33 75 129 175 224 367 519 833 1183 1587 2030 2484 2778
4.1 33 77 132 180 230 376 532 854 1213 1627 2081 2547 2847
4.2 34 79 135 184 235 385 545 875 1243 1667 2132 2609 2917
4.3 35 80 138 189 241 394 558 896 1272 1706 2183 2671 2986
4.4 36 82 141 193 246 403 571 917 1302 1746 2234 2733 3056
4.5 37 84 145 197 252 412 584 938 1331 1786 2284 2795 3125
4.6 37 86 148 202 258 422 597 958 1361 1825 2335 2857 3194
4.7 38 88 151 206 263 431 610 979 1391 1865 2386 2919 3264
4.8 39 90 154 211 269 440 623 1000 1420 1905 2437 2981 3333
4.9 40 92 158 215 275 449 636 1021 1450 1944 2487 3043 3403
5 41 93 161 219 280 458 649 1042 1479 1984 2538 3106 3472
5.1 41 95 164 224 286 467 662 1063 1509 2024 2589 3168 3542
5.2 42 97 167 228 291 477 675 1083 1538 2063 2640 3230 3611
5.3 43 99 170 232 297 486 688 1104 1568 2103 2690 3292 3681
5.4 44 101 174 237 303 495 701 1125 1598 2143 2741 3354 3750
5.5 45 103 177 241 308 504 714 1146 1627 2183 2792 3416 3819
5.6 46 105 180 246 314 513 727 1167 1657 2222 2843 3478 3889
5.7 46 107 183 250 319 522 740 1188 1686 2262 2893 3540 3958
5.8 47 108 186 254 325 532 753 1208 1716 2302 2944 3602 4028
5.9 48 110 190 259 331 541 766 1229 1746 2341 2995 3665 4097
6 49 112 193 263 336 550 779 1250 1775 2381 3046 3727 4167
6.1 50 114 196 268 342 559 792 1271 1805 2421 3096 3789 4236
6.2 50 116 199 272 347 568 805 1292 1834 2460 3147 3851 4306
6.3 51 118 203 276 353 577 818 1313 1864 2500 3198 3913 4375
6.4 52 120 206 281 359 587 831 1333 1893 2540 3249 3975 4444
6.5 53 121 209 285 364 596 844 1354 1923 2579 3299 4037 4514
6.6 54 123 212 289 370 605 857 1375 1953 2619 3350 4099 4583
6.7 54 125 215 294 375 614 870 1396 1982 2659 3401 4161 4653
6.8 55 127 219 298 381 623 883 1417 2012 2698 3452 4224 4722
6.9 56 129 222 303 387 632 896 1438 2041 2738 3503 4286 4792
7 57 131 225 307 392 642 909 1458 2071 2778 3553 4348 4861
7.1 58 133 228 311 398 651 922 1479 2101 2817 3604 4410 4931
7.2 59 135 232 316 403 660 935 1500 2130 2857 3655 4472 5000
7.3 59 136 235 320 409 669 948 1521 2160 2897 3706 4534 5069
7.4 60 138 238 325 415 678 961 1542 2189 2937 3756 4596 5139
7.5 61 140 241 329 420 687 974 1563 2219 2976 3807 4658 5208
7.6 62 142 244 333 426 697 987 1583 2249 3016 3858 4720 5278
7.7 63 144 248 338 431 706 1000 1604 2278 3056 3909 4783 5347
7.8 63 146 251 342 437 715 1013 1625 2308 3095 3959 4845 5417
7.9 64 148 254 346 443 724 1026 1646 2337 3135 4010 4907 5486
8 65 150 257 351 448 733 1039 1667 2367 3175 4061 4969 5556
8.1 66 151 260 355 454 742 1052 1688 2396 3214 4112 5031 5625
8.2 67 153 264 360 459 752 1065 1708 2426 3254 4162 5093 5694
8.3 67 155 267 364 465 761 1078 1729 2456 3294 4213 5155 5764
8.4 68 157 270 368 471 770 1091 1750 2485 3333 4264 5217 5833
8.5 69 159 273 373 476 779 1104 1771 2515 3373 4315 5280 5903
8.6 70 161 277 377 482 788 1117 1792 2544 3413 4365 5342 5972
8.7 71 163 280 382 487 797 1130 1813 2574 3452 4416 5404 6042
8.8 72 164 283 386 493 807 1143 1833 2604 3492 4467 5466 6111
8.9 72 166 286 390 499 816 1156 1854 2633 3532 4518 5528 6181
9 73 168 289 395 504 825 1169 1875 2663 3571 4569 5590 6250
9.1 74 170 293 399 510 834 1182 1896 2692 3611 4619 5652 6319
9.2 75 172 296 404 515 843 1195 1917 2722 3651 4670 5714 6389
9.3 76 174 299 408 521 852 1208 1938 2751 3690 4721 5776 6458
9.4 76 176 302 412 527 862 1221 1958 2781 3730 4772 5839 6528
9.5 77 178 305 417 532 871 1234 1979 2811 3770 4822 5901 6597
9.6 78 179 309 421 538 880 1247 2000 2840 3810 4873 5963 6667
9.7 79 181 312 425 543 889 1260 2021 2870 3849 4924 6025 6736
9.8 80 183 315 430 549 898 1273 2042 2899 3889 4975 6087 6806
9.9 80 185 318 434 555 907 1286 2063 2929 3929 5025 6149 6875
10 81 187 322 439 560 917 1299 2083 2959 3968 5076 6211 6944
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.