Chevrolet Silverado 4500HD, Manual

Page: 289 / 573

7-170 Electrical Component and Inline Harness Connector End Views
K20 Engine Control Module X1 (cont'd)
Pin Size Color Circuit Function Terminal
Type ID
Option
7 0.5 VT/YE 5985 Accessory Wake-Up Serial Data II —
8 - 9 — — — Not Occupied — —
10 0.5 L-GN/WH 492 Mass Air Flow Sensor Signal II —
11 0.5 D-BU/GY 636 Ambient Air Temperature Sensor Signal II —
12 — — — Not Occupied — —
13 0.5 WH/RD 1164 Accelerator Pedal Position 5 Volt Reference 1 II —
14 0.5 BN/RD 1274 Accelerator Pedal Position 5V Reference 2 II —
15 0.5 L-GN/WH 1162 Accelerator Pedal Position Signal 2 II —
16 0.5 BK/VT 1272 Accelerator Pedal Position Low Reference 2 II —
17 - 20 — — — Not Occupied — —
21 0.5 YE 2928 Fuel Metering Solenoid Valve High Control II —
22 0.5 VT/L-GN 439 Run/Crank Ignition 1 Voltage 4 II —
23 — — — Not Occupied — —
24 0.5 WH/D-BU 6311 Cruise/ETC/TCC Brake Signal II —
25 0.5 BN/GY 4008 Humidity Sensor Signal II —
26 0.5 BK/D-BU 61 Ambient Air Temperature Sensor Low Reference II —
27 0.5 BK/D-BU 1271 Accelerator Pedal Position Low Reference 1 II —
28 0.5 YE/WH 1161 Accelerator Pedal Position Signal 1 II —
29 - 32 — — — Not Occupied — —
33 0.5 BN/WH 419 Check Engine Indicator Control II —
34 0.5 L-GN/BN 507 Wait To Start Indicator Control II —
35 0.5 WH/GY 459 A/C Compressor Clutch Relay Control II —
36 0.5 BN/BK 2929 Fuel Metering Solenoid Valve Low Control II —
37 - 38 — — — Not Occupied — —
39 0.5 WH 4499 High Speed GMLAN Serial Data [-] 7 II —
40 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 II —
41 - 42 — — — Not Occupied — —
43 0.5 BK/BN 5360 Brake Apply Sensor Low Reference II —
44 0.5 WH 5359 Brake Apply Sensor Voltage Reference II —
45 0.5 WH/D-BU 6289 Intake Air Temperature Sensor Signal II —
46 0.5 BN/RD 2700 A/C Pressure Sensor 5V Reference II —
47 0.5 L-GN 380 A/C Refrigerant Pressure Sensor Signal II —
48 0.5 BK/BN 5514
A/C Refrigerant Pressure Sensor Low
Reference
II —
49 — — — Not Occupied — —
50 0.5 WH/BK 2366 Cooling Fan Speed Control Signal II —
51 0.5 YE 5991 Powertrain Relay Coil Control II —
52 - 53 — — — Not Occupied — —
54 0.5 D-BU/BN 4498 High Speed GMLAN Serial Data [+] 7 II —
55 0.5 D-BU 2500 High Speed GMLAN Serial Data [+] 1 II —
56 - 58 — — — Not Occupied — —
59 0.5 D-BU/YE 5361 Brake Apply Sensor Signal II —
60 0.5 BK/VT 2760 Intake Air Temperature Sensor Low Reference II —
61 - 64 — — — Not Occupied — —
65 0.5 YE/BK 625 Starter Enable Relay Control II —
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual