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.
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HOMESERVICE MANUALSGMC2024SIERRA 2500 HD DENALI ULTIMATEREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K111 - K219)COMPONENT CONNECTOR END VIEWSK115 REDUCTANT CONTROL MODULE (L5P)
2024 GMC Sierra 2500 HD Denali Ultimate
K115 Reductant Control Module (L5P)
2024 GMC Sierra 2500 HD Denali UltimateSECTION K115 Reductant Control Module (L5P)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | Not required | J-35616-14 (GN) | No Tool Required |
| II | Not required | J-35616-40 (BU) | No Tool Required |
| III | Not required | J-35616-4A (PU) | No Tool Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 3.0 | BK | 2040 | Battery Positive Voltage | II | - |
| 2 | 1.0 | BN | 3676 | Diesel Exhaust Fluid Heating Tank 2 Heater Control | I | - |
| 3 | - | - | - | Not Occupied | - | - |
| 4 | 1.0 | YE | 3677 | Diesel Exhaust Fluid Reservoir Heater Control | I | - |
| 5 | - | - | - | Not Occupied | - | - |
| 6 | 0.5 | BK | 3244 | Diesel Exhaust Fluid Tank Temperature Sensor Signal | I | - |
| 7 | 0.5 | BK | 7286 | Diesel Exhaust Fluid Sensor Voltage Reference 2 | I | - |
| 8 | 0.5 | BN | 7284 | Diesel Exhaust Fluid Liquid Quality Temperature Signal | I | - |
| 9 | 0.5 | BK | 7285 | Diesel Exhaust Fluid Liquid Quality Temperature Sensor Low Reference | I | - |
| 10 | - | - | - | Not Occupied | - | - |
| 11 | 1.0 | YE | 3876 | Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 3 | I | - |
| 12 | - | - | - | Not Occupied | - | - |
| 13 | 3.0 | WH | 1650 | Ground | II | - |
| 14 | 1.0 | BN | 2936 | Diesel Exhaust Fluid Heating Tank 2 Heater Control Low | I | - |
| 15 | - | - | - | Not Occupied | - | - |
| 16 | 1.0 | BU | 4318 | Diesel Exhaust Fluid Tank Heater Low Control | I | - |
| 17 | - | - | - | Not Occupied | - | - |
| 18 | 0.5 | BN | 3245 | Diesel Exhaust Fluid Tank Temperature Sensor Low Reference | I | - |
| 19 | 0.5 | BN | 3106 | Diesel Exhaust Fluid Pressure Sensor 5 Volt Reference | I | - |
| 20 | 0.5 | BU | 3108 | Diesel Exhaust Fluid Pressure Sensor Signal | I | - |
| 21 | 0.5 | BU | 3107 | Diesel Exhaust Fluid Pressure Sensor Low Reference | I | - |
| 22 - 23 | - | - | - | Not Occupied | - | - |
| 24 | 1.0 | BN | 3875 | Diesel Exhaust Fluid Smart Pump Supply Voltage Phase 2 | I | - |
| 25 | 2.0 | BK | 1650 | Ground | III | - |
| 26 | 1.0 | WH | 3199 | Diesel Exhaust Fluid Pressure Line Heater Control | I | - |
| 27 | - | - | - | Not Occupied | - | - |
| 28 | 1.0 | BN | 4319 | Diesel Exhaust Fluid Line Heater Low Control | I | - |
| 29 | - | - | - | Not Occupied | - | - |
| 30 | 0.5 | BN | 639 | Run/Crank Ignition 1 Voltage | I | - |
| 31 | 0.5 | BU | 4977 | AUTOSAR CAN Bus [+] 3 Serial Data | I | - |
| 32 | 0.5 | BU | 4977 | AUTOSAR CAN Bus [+] 3 Serial Data | I | - |
| 33 | 0.5 | BN | 4976 | AUTOSAR CAN Bus [-] 3 Serial Data | I | - |
| 34 | 0.5 | BN | 4976 | AUTOSAR CAN Bus [-] 3 Serial Data | I | - |
| 35 | - | - | - | Not Occupied | - | - |
| 36 | 1.0 | BU | 2937 | Diesel Exhaust Fluid Pump Motor Stator Low Reference | I | - |
| 37 | 1.0 | WH | 3103 | Diesel Exhaust Fluid Smart Pump Control | I | - |
| 38 | 2.0 | RD | 2440 | Battery Positive Voltage | III | - |
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:
- • 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.