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Home >> Cadillac >> 2016 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Wiring Systems And Power Management - Component Connector End Views - E37LR To K20 X3 (Coupe)) >> Component Connector End Views >> K20 Engine Control Module X1
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K20 Engine Control Module X1

WARNING: This page is about a different car, the 2015 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
GM1590948
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34576-6933
  • Service Connector: 19330772
  • Description: 56-Way F MX123 34576 Series (BK with BU Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Core Crimp Insulation Crimp
I 19301532 J-35616-16 (LT GN) J-38125-213 Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1-6 - - - Not Occupied - -
7 0.5 WH 17 Stop Lamp Switch Signal I LSA
8 - - - Not Occupied - -
9 0.5 TN 2759 Fuel Tank Pressure Sensor Low Reference I LSA
10-11 - - - Not Occupied - -
12 0.5 BN/WH 419 Check Engine Indicator Control I LSA
13 0.5 D-GN/WH 465 Fuel Pump Primary Relay Control I LSA
14-17 - - - Not Occupied - -
18 0.5 D-BU 5985 Accessory Wakeup Serial Data I LSA
19 0.5 PK 339 Run/Crank Ignition 1 Voltage I LSA
20 0.5 RD/WH 340 Battery Positive Voltage I LSA
21-25 - - - Not Occupied - -
26 0.5 YE 447 Starter Relay Coil Control I LSA
27-32 - - - Not Occupied - -
33 0.5 WH/BK 1164 Accelerator Pedal Position 5 Volt Reference (1) I LSA
34 0.5 GY 2709 Fuel Tank Pressure Sensor 5 Volt Reference I LSA
35 0.5 TN 1274 Accelerator Pedal Position 5 Volt Reference (2) I LSA
36 0.5 BN 1271 Accelerator Pedal Position Low Reference (1) I LSA
37 0.5 VT 1272 Accelerator Pedal Position Low Reference (2) I LSA
38-39 - - - Not Occupied - -
40 0.5 BN 5069 Engine Main Relay Coil Control I LSA
41-43 - - - Not Occupied - -
44 0.5 D-BU 1936 Primary Fuel Level Sensor Signal I LSA
45 0.5 L-BU 1937 Secondary Fuel Level Sensor Signal I LSA
46 0.8 BN 7123 Super Charger Inlet Air Pressure Sensor Signal I LSA
47 0.5 D-BU 1161 Accelerator Pedal Position Signal (1) I LSA
48 0.5 D-GN 890 Fuel Tank Pressure Sensor Signal I LSA
49 0.5 L-BU 1162 Accelerator Pedal Position Signal (2) I LSA
50-52 - - - Not Occupied - -
53 0.5 D-GN/WH 459 A/C Compressor Clutch Relay Control I LSA
54 0.5 D-BU 473 High Speed Cooling Fan Relay Control I LSA
55 0.8 WH 1310 EVAP Canister Vent Solenoid Control I LSA
56 - - - Not Occupied - -