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HOMESERVICE MANUALSGMC2016SIERRA 3500 HD SLE, 4D CAB CHASSIS, 6.6L ENG VIN 8, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - K33X3 TO K111COMPONENT CONNECTOR END VIEWSK59 STARTER/GENERATOR CONTROL MODULE X1
2016 GMC Sierra 3500 HD SLE, 4D Cab Chassis, 6.6L Eng VIN 8, 4WD

K59 Starter/Generator Control Module X1

2016 GMC Sierra 3500 HD SLE, 4D Cab Chassis, 6.6L Eng VIN 8, 4WDSECTION K59 Starter/Generator Control Module X1
GM784851
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 13510837
  • Service Connector: 88988373
  • Description: 56-Way F 0.64 Series, Sealed (BU with BU Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I 13575812 J-35616-64B (LT BU) J-38125-213 Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 VT/GN 439 Run/Crank Ignition 1 Voltage I -
2 0.5 VT/YE 5985 Accessory Wakeup Serial Data I -
3 0.5 BU 2500 High Speed GMLAN Serial Data (+) 1 I -
4 0.5 WH 2501 High Speed GMLAN Serial Data (-) 1 I -
5 0.5 BU/BK 7493 High Speed GMLAN Serial Data (+)3 I -
6 0.5 WH 7494 High Speed GMLAN Serial Data (-)3 I -
7 0.75 BU 7645 Traction Power Inverter Module Resolver 1 Excitation Signal Positive I -
8 0.75 WH/GN 7648 Traction Power Inverter Module Traction Power Inverter Module Resolver 1 Excitation Signal Negative I -
9 0.75 BN 7652 Traction Power Inverter Module Resolver 1 S3 Signal I -
10 0.75 YE 7649 Traction Power Inverter Module Resolver 1 S1 Signal I -
11 0.75 VT/GN 7647 Transmission Traction Power Inverter Module Resolver 1 S2 Signal I -
12 0.75 GY 7646 Transmission Traction Power Inverter Module Resolver 1 S4 Signal I -
13 - 16 - - - Not Occupied - -
17 0.5 BU 2500 High Speed GMLAN Serial Data (+) 1 I -
18 0.5 WH 2501 High Speed GMLAN Serial Data (-) 1 I -
19 0.5 BU/BK 7493 High Speed GMLAN Serial Data (+)3 I -
20 0.5 WH 7494 High Speed GMLAN Serial Data (-)3 I -
21 - 27 - - - Not Occupied - -
28 0.5 WH 5359 Brake Apply Sensor Control I -
29 - 38 - - - Not Occupied - -
39 0.5 BK/BN 5360 Brake Apply Sensor Low Reference I -
40 0.5 BK/GY 3872 Powertrain Electronics Cooling Loop (PECL) Temperature Sensor Low Reference I -
41 - - - Not Occupied - -
42 0.5 WH/BN 3768 MGU Coolant Pump Relay Control I -
43 - 48 - - - Not Occupied - -
49 0.5 VT/BU 3790 Electric Coolant Motor Feedback Signal I -
50 - 52 - - - Not Occupied - -
53 0.5 BU/YE 5361 Brake Apply Sensor Signal I -
54 0.5 GY/VT 3873 Powertrain Electronics Cooling Loop (PECL) Temperature Sensor Signal I -
55 - - - Not Occupied - -
56 0.5 WH/GY 4578 Surge Accumulator Solenoid Low Side Control I -
RENDER: 1.0x

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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.