2007 Saturn Ion Red LineFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (PCM) C2

Fig 1: Powertrain Control Module (PCM) C2 Connector End View
GM784850Courtesy of GENERAL MOTORS CORP.
Powertrain Control Module (PCM) C2 Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 15468092
  • Service: 88988913
  • Description: 73-Way F GT 280 Micro 64 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1, 2, 4-9, 16-18, 20, 21, 25, 26, 29, 30, 32, 33, 35-43, 45, 46, 48, 51-55, 58-60, 64-66, 68, 69, 73
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Powertrain Control Module (PCM) C2 Terminal Identification

Pin Wire Color Circuit No. Function
1 RD 225 Generator Turn On Signal
2 D-GN 485 TP Sensor 1 Signal
3 - - Not Used
4 GY 596 5-Volt Reference
5 GY 2704 5-Volt Reference
6 GY 2701 5-Volt Reference
7 PU 486 TP Sensor 2 Signal
8 D-GN 6291 5-Volt Reference
9 L-BU/BK 1688 5-Volt Reference
10-15 - - Not Used
16 PU 6413 Low Reference
17 YE 573 CKP Sensor 1 Signal
18 PU 574 Low Reference
19 - - Not Used
20 D-GN/WH 6292 Low Reference
21 PK/BK 632 Low Reference
22-24 - - Not Used
25 TN/WH 1669 HO2S Low Signal Sensor 2
26 BN/WH 633 Camshaft Position Signal
27-28 - - Not Used
29 GY 1724 Boost Control Solenoid Control
30 OG/BK 469 Low Reference
31 - - Not Used
32 TN 1667 HO2S Low Signal Bank 2 Sensor 1
33 BK 1744 Fuel Injector 1 Control
34 - - Not Used
35 YE 410 ECT Sensor Signal
36 BK/WH 1704 Low Reference
37 GY 6337 MAP Sensor Signal
38 L-GN 432 SCIP Sensor Signal
39 BK 2752 Low Reference
40 BN/WH 6405 IC 1 Signal
41 YE 492 MAF Sensor Signal
42 D-GN/WH 6407 IC 4 Signal
43 BK/WH 1423 HO2S Heater Low Control Bank 1 Sensor 2
44 - - Not Used
45 GY 23 Generator Field Duty Cycle Signal
46 PU/WH 1668 HO2S High Signal Sensor 2
47 - - Not Used
48 PU 1666 HO2S High Signal Bank 2 Sensor 1
49-50 - - Not Used
51 TN 472 IAT Sensor Signal
52 BK 2761 Low Reference
53 L-GN/BK 1745 Fuel Injector 2 Control
54 L-BU/BK 844 Fuel Injector 4 Control
55 PK/BK 1746 Fuel Injector 3 Control
56-57 - - Not Used
58 D-GN 676 HO2S Heater High Control Bank 1 Sensor 1
59 D-BU/WH 6406 IC 3 Signal
60 L-BU/WH 6408 IC 2 Signal
61-63 - - Not Used
64 BK 2760 Low Reference
65 BN 582 TAC Motor Control 2
66 YE 581 TAC Motor Control 1
67 - - Not Used
68 D-BU 496 Knock Sensor Signal
69 GY 1716 Knock Sensor Signal
70-72 - - Not Used
73 BK/WH 451 Ground
Factory Service Tools

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When to See a Mechanic

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.

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