Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS - INLINE HARNESS CONNECTOR END VIEWSINLINE HARNESS CONNECTOR END VIEWSC105 (DIESEL)
2001 Chevrolet Suburban C1500
C105 (Diesel)
2001 Chevrolet Suburban C1500SECTION C105 (Diesel)
C105 (Diesel)
| Connector Part Information |
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Connector Part Information |
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|---|---|---|---|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function | Pin | Wire Color | Circuit No. | Function |
| A | GRY | 1273 | Low Reference | A | GRY | 1273 | Low Reference |
| B | PPL | 1272 | Low Reference | B | PPL | 1272 | Low Reference |
| C | LT BLU | 1162 | APP Sensor 2 Signal | C | LT BLU | 1162 | APP Sensor 2 Signal |
| D | TAN | 1274 | 5 Volt Reference | D | TAN | 1274 | 5 Volt Reference |
| E | YEL/BLK | 975 | Low Reference | E | YEL/BLK | 975 | Low Reference |
| F | DK BLU | 1161 | APP Sensor 1 Signal | F | DK BLU | 1161 | APP Sensor 1 Signal |
| G | WHT/BLK | 1164 | 5 Volt Reference | G | WHT/BLK | 1164 | 5 Volt Reference |
| H | YEL | 2470 | ECM/PCM Class 2 Serial Data | H | YEL | 2470 | ECM/PCM Class 2 Serial Data |
| J | BRN | 971 | Low Reference | J | BRN | 971 | Low Reference |
| K | DK GRN | 1163 | APP Sensor 3 Signal | K | DK GRN | 1163 | APP Sensor 3 Signal |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.