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HOMESERVICE MANUALSPONTIAC2007SOLSTICE BASE, STANDARDREPAIR AND DIAGNOSISELECTRICALBODY ELECTRICALOEM CONNECTOR END VIEWSENGINE CONTROL MODULE CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) CONNECTOR END VIEW C1
2007 Pontiac Solstice Base, Standard

Engine Control Module (ECM) Connector End View C1

2007 Pontiac Solstice Base, StandardSECTION Engine Control Module (ECM) Connector End View C1
Fig 1: ECM C1 Connector End View
GM1590948Courtesy of GENERAL MOTORS CORP.
ECM C1 Connector Part Information

Connector Part Information 
  • OEM: 34576-2603
  • Service: 88988373
  • Description: 56-Way F (GY)
Terminal Part Information 
  • Pins: 6, 9,13, 19, 20, 44, 48, 55
  • Terminal/Tray:33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J38125-213/J-35616-64B (L-BU)
  • Pins: 7, 12, 18, 33, 35, 37, 40, 47, 49, 53, 54, 56
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J38125-213/J-35616-64B (L-BU)
ECM C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1-5 - - Not Used
6 BN/WH 379 CPP Switch Signal (MA5)
7 L-BU 20 Stop Lamp Supply Voltage
8 - - Not Used
9 TN 2759 Low Reference
10-11 - - Not Used
12 BN/WH 419 MIL Control
13 D-GN/WH 465 Fuel Pump Relay Control
14-17 - - Not Used
18 BN 4 Accessory Voltage
19 PK 1039 Ignition 1 Voltage
20 RD/WH 840 Battery Positive Voltage
21-32 - - Not Used
33 WH/BK 1164 5-Volt Reference
34 GY 2709 5-Volt Reference
35 TN 1274 5-Volt Reference
36 BN 1271 Low Reference
37 PU 1272 Low Reference
38-39 - - Not Used
40 BN 5069 Main Relay Control
41-43 - - Not Used
44 PU 1589 Fuel Level Sensor Signal
45-46 - - Not Used
47 D-BU 1161 APP Sensor 1 Signal
48 D-GN 890 Fuel Tank Pressure Sensor Signal
49 L-BU 1162 APP Sensor 2 Signal (MA5)
50-52 - - Not Used
53 D-GN/WH 459 A/C Compressor Clutch Relay Control (C60)
54 D-BU 473 High Speed Cooling Fan Relay Control
55 WH 1310 EVAP Canister Vent Solenoid Control
56 YE 447 Starter Relay Coil Control


Fig 1: Engine Control Module (ECM) C1 Connector End View
GM1826274Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C1 Connector Part Information

Connector Part Information 
  • OEM:1 928 401 713
  • Service: 88988373
  • Description: 96-Way
Terminal Part Information 
  • Pins:
  • Terminal/Tray:
  • Core/Insulation Crimp:
  • Release Tool/Test Probe:
  • Pins:
  • Terminal/Tray:
  • Core/Insulation Crimp:
  • Release Tool/Test Probe:
Engine Control Module (ECM) C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 L-GN 5282 Camshaft Phaser Exhaust Solenoid (1)
2 PU 5284 Camshaft Phaser Intake Solenoid (1)
3-4 - - Not Used
5 YE 7301 High Pressure Fuel Pump Actuator High Control
6 D-GN/WH 428 EVAP Canister Purge Solenoid Control
7 OR 5275 Camshaft Position Intake Sensor (1)
8-9 - - Not Used
10 OR 225 Generator Turn On Signal
11-12 - - Not Used
13 BN/WH 2130 Low Reference
14 - - Not Used
15 GY 705 5-Volt Reference
16 D-GN 6391 Turbo Bypass Valve Control
17 TN/BK 231 Oil Pressure Switch Signal
18 YE 258 Wastegate Solenoid Control
19-23 - - Not Used
24 YE 581 TAC Motor Control-1
25 - - Not Used
26 L-BU 4804 Direct Fuel Injector (DFI) High Voltage Control Cylinder 4
27 L-BU/WH 4904 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4
28 D-BU 4802 Direct Fuel Injector (DFI) High Voltage Control Cylinder 2
29 D-BU/WH 4902 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2
30 GY 23 Generator Field Duty Cycle Signal
31-33 - - Not Used
34 D-GN 5273 Camshaft Position Exhaust Sensor (1)
35 YE 573 CKP Sensor 1 Signal
36 YE 2918 FRP Sensor Signal
37 L-GN 432 MAP Sensor Signal
38 GY 598 5-Volt Reference
39 GY 2701 5-Volt Reference
40 - - Not Used
41 TN 552 Low Reference
42 TN 808 Low Reference
43 - - Not Used
44 TN 2761 Low Reference
45 GY 605 5-Volt Reference
46 TN 452 Low Reference
47 - - Not Used
48 BN 582 TAC Motor Control - 2l
49-50 - - Not Used
51 BN 4801 Direct Fuel Injector (DFI) High Voltage Control Cylinder 1
52 D-GN 4803 Direct Fuel Injector (DFI) High Voltage Control Cylinder 3
53 D-GN/WH 4903 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3
54 BN/WH 419 MIL Control
55 PU 2121 IC 1 Control
56 D-GN/WH 2124 IC 4 Control
57-58 - - Not Used
59 D-BU 496 Knock Sensor Signal
60 GY 2303 Low Reference
61-63 - - Not Used
64 TN 407 Low Reference
65 - - Not Used
66 PU 7330 Pre-Throttle Air Temp and Press (TMAP) Air Pressure Signal
67 TN/WH 3111 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1)
68 WH 5279 Output Pump Current
69-72 - - Not Used
73 PU 7300 High Pressure Fuel Pump Actuator Low Control
74 - - Not Used
75 BN/WH 4901 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1
76-77 - - Not Used
78 BN 2129 Low Reference
79 L-BU 2123 IC 3 Control
80 OR/WH 2122 IC 2 Control
81 - - Not Used
82 YE 410 ECT Sensor Signal
83 GY 1716 Knock Sensor Signal
84 L-BU 1876 Knock Sensor 2 Signal
85 - - Not Used
86 L-BU 7329 Pre-Throttle Air Temp and Press (TMAP) Temperature Signal
87 - - Not Used
88 TN 2752 Low Reference
89 PU 486 TP Sensor 2 Signal
90 D-GN 485 TP Sensor 1 Signal
91 L-GN 5278 Heated Oxygen Sensor Input Pump Current Bank 1 Sensor (1)
92 PU/WH 3110 Heated Oxygen Sensor High Signal Bank 1 Sensor (1)
93-94 - - Not Used
95 GY 597 5-Volt Reference
96 GY/WH 3113 HO2S Heater Low Control Bank 1 Sensor 1
RENDER: 1.0x

NO RELATED

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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.