K20 Engine Control Module X3 (LF4)
WARNING: This page is about a different car, the 2021 Cadillac CT4. 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: 33257855
- Service Connector: 19366869
- Description: 49 -Way F 0.64, 2.8 Series, Sealed (BK with BK Terminal Position Assurance)
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Terminal Part Information
| Terminal Type ID |
Terminated Lead |
Diagnostic Test Probe |
Terminal Removal Tool |
| I |
13587518 |
J-35616-35 (VT) |
J-38125-11A |
| II |
19351723 |
J-35616-64B (LT BU) |
J-38125-213 |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 |
0.5 |
GY / GN |
3216 |
Turbocharger Boost Control Solenoid Valve Control |
II |
- |
| 2 - 3 |
- |
- |
- |
Not Occupied |
- |
- |
| 4 |
0.5 |
GN / BU |
4637 |
Engine Control Module LIN Bus 5 |
II |
- |
| 5 |
0.5 |
GN |
6935 |
HO2S Pump Current Trim Signal |
II |
- |
| 6 |
0.5 |
BN / WH |
6933 |
HO2S Pump Current Signal |
II |
- |
| 7 |
0.5 |
BN |
6934 |
HO2S Ground |
II |
- |
| 8 |
0.5 |
YE / GY |
6936 |
HO2S Signal |
II |
- |
| 9 - 10 |
- |
- |
- |
Not Occupied |
- |
- |
| 11 |
0.5 |
BN / YE |
258 |
Turbocharger Wastegate Solenoid Valve Control |
II |
- |
| 12 - 14 |
- |
- |
- |
Not Occupied |
- |
- |
| 15 |
0.5 |
BU |
2572 |
Heated Oxygen Sensor 2 Current Adjust Signal |
II |
- |
| 16 |
0.5 |
YE / WH |
2570 |
Heated Oxygen Sensor 2 Pump Current Signal |
II |
- |
| 17 |
0.5 |
WH |
2571 |
Heated Oxygen Sensor 2 Common Bank 2 Sensor 1 Signal |
II |
- |
| 18 |
0.5 |
BN / GY |
2573 |
Heated Oxygen Sensor 2 Collector Signal |
II |
- |
| 19 - 20 |
- |
- |
- |
Not Occupied |
- |
- |
| 21 |
0.5 |
WH / GY |
3218 |
Turbocharger Boost Control Solenoid Valve 2 Control |
II |
- |
| 22 |
- |
- |
- |
Not Occupied |
- |
- |
| 23 |
0.5 |
WH / BU |
7329 |
Pre-Throttle Air Temperature Signal |
II |
- |
| 24 - 31 |
- |
- |
- |
Not Occupied |
- |
- |
| 32 |
0.5 |
VT / BU |
5294 |
Powertrain Main Relay Fused Supply Voltage 5 |
II |
- |
| 33 |
0.5 |
VT / BU |
5294 |
Powertrain Main Relay Fused Supply Voltage 5 |
II |
- |
| 34 |
- |
- |
- |
Not Occupied |
- |
- |
| 35 |
0.5 |
GY / BU |
5930 |
Turbocharger Vane Position Control Solenoid Valve High Signal |
II |
- |
| 36 - 37 |
- |
- |
- |
Not Occupied |
- |
- |
| 38 |
0.5 |
YE / BK |
7337 |
Mass Air Flow Sensor 2 Signal |
II |
- |
| 39 - 48 |
- |
- |
- |
Not Occupied |
- |
- |
| 49 |
2 |
VT / BU |
5290 |
Powertrain Main Relay Fused Supply Voltage 1 |
I |
- |