K20 Engine Control Module X3 (LCV)
WARNING: This page is about a different car, the 2020 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type:Engine
- OEM Connector: 34566-0203
- Service Connector: 19333091
- Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with GY Terminal Position Assurance)
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Terminal Part Information
| Terminal Type ID |
Terminated Lead |
Diagnostic Test Probe |
Terminal Removal Tool |
| I |
13578937 |
J-35616-35 (VT) |
J-38125-11A |
| II |
19354746 |
J-35616-64B (LT BU) |
J-38125-215A |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 - 2 |
- |
- |
- |
Not Occupied |
- |
- |
| 3 |
0.75 |
GN/BU |
3889 |
Powertrain Sensor Bus Relay Control |
II |
LCV |
| 4 |
0.5 |
GN/BU |
428 |
EVAP Canister Purge Solenoid Control |
II |
LCV |
| 5 |
- |
- |
- |
Not Occupied |
- |
- |
| 6 |
0.5 |
BN/RD |
2917 |
Fuel Rail Pressure Sensor 5V Reference |
II |
LCV |
| 7 - 13 |
- |
- |
- |
Not Occupied |
- |
- |
| 14 |
0.5 |
WH/RD |
3201 |
Throttle Inlet Absolute Pressure Sensor 5V Reference |
II |
LCV |
| 15 |
0.5 |
YE/RD |
6031 |
Brake Vacuum Sensor 5V Reference |
II |
LCV |
| 16 |
0.5 |
VT/BU |
5294 |
Powertrain Main Relay Fused Supply 5 |
II |
LCV |
| 17 |
- |
- |
- |
Not Occupied |
- |
- |
| 18 |
0.5 |
BN |
25 |
Charge Indicator Control |
II |
LCV |
| 19 |
0.5 |
GY |
23 |
Generator Field Duty Cycle Signal |
II |
LCV |
| 20 |
0.5 |
BK/WH |
2151 |
Signal Ground |
II |
LCV |
| 21 |
0.5 |
BU/WH |
2918 |
Fuel Rail Pressure Sensor Signal |
II |
LCV |
| 22 |
0.5 |
BK/GN |
2919 |
Fuel Rail Pressure Sensor Low Reference |
II |
LCV |
| 23 - 39 |
- |
- |
- |
Not Occupied |
- |
- |
| 40 |
0.5 |
GN/WH |
432 |
Manifold Absolute Pressure Sensor Signal |
II |
LCV |
| 41 |
0.5 |
BN/GN |
1174 |
Oil Level Switch Signal |
II |
LCV |
| 42 - 45 |
- |
- |
- |
Not Occupied |
- |
- |
| 46 |
0.5 |
YE/WH |
3200 |
Throttle Inlet Absolute Pressure Sensor Signal |
II |
LCV |
| 47 - 51 |
- |
- |
- |
Not Occupied |
- |
- |
| 52 |
0.5 |
VT/BK |
7300 |
High Pressure Fuel Pump Actuator Low - Control |
II |
LCV |
| 53 - 54 |
- |
- |
- |
Not Occupied |
- |
- |
| 55 |
0.5 |
GN/VT |
4621 |
Engine Control Module LIN Bus 1 |
II |
LCV |
| 56 - 58 |
- |
- |
- |
Not Occupied |
- |
- |
| 59 |
0.5 |
BK/GY |
2303 |
Knock Sensor Low Reference 2 |
II |
LCV |
| 60 |
0.5 |
WH/GY |
1876 |
Knock Sensor Signal 2 |
II |
LCV |
| 61 |
0.5 |
BK/YE |
1716 |
Knock Sensor Low Reference 1 |
II |
LCV |
| 62 |
0.5 |
VT/GY |
496 |
Knock Sensor Signal 1 |
II |
LCV |
| 63 - 71 |
- |
- |
- |
Not Occupied |
- |
- |
| 72 |
0.5 |
YE |
7301 |
High Pressure Fuel Pump Actuator High - Control |
II |
LCV |
| 73 |
2 |
BK/WH |
451 |
Signal Ground |
I |
LCV |