2004 Saturn Ion Red LineFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (PCM) Connector End Views

Powertrain Control Module (PCM) C1 Terminal Identification

GM1228485Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15357147
  • 56-Way F Micro 64 Sealed (BU)
Pin Wire Color Circuit No. Function
1-5 - - Not Used
6 D-GN/WH 459 A/C Compressor Clutch Relay Control
7 BN 1271 Low Reference
8 PU 1272 Low Reference
9 - - Not Used
10 D-BU 473 High Speed Cooling Fan Relay Control
11 - - Not Used
12 PU 1589 Fuel Level Sensor Signal - Primary
13 PK/BK 5290 Ignition 1 Voltage
14 L-BU 6118 IAT 2 Sensor Signal
15 PU 1807 ECM Class 2 Serial Data
16 PU 1807 ECM Class 2 Serial Data
17 GY 2700 5-Volt Reference
18 BN 4 Accessory Voltage
19 YE 1139 Ignition 1 Voltage
20 OG 480 Load Management Control
21 - - Not Used
22 WH 1310 EVAP Canister Vent Solenoid Control
23 - - Not Used
24 D-GN 890 Fuel Tank Pressure Sensor Signal
25 - - Not Used
26 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
27 D-BU 1161 APP Sensor 1 Signal
28 - - Not Used
29 BK 2759 Low Reference
30 WH/BK 1164 5-Volt Reference
31 - - Not Used
32 L-BU 20 Stop Lamp Supply Voltage/Stop Lamp Switch Signal
33 - - Not Used
34 PK 2014 Coolant Pump Relay Control
35-36 - - Not Used
37 D-GN/WH 465 Fuel Pump Relay Control - Primary
38 BN 5069 Main Relay Control
39 - - Not Used
40 BN/WH 419 MIL Control
41 L-BU 1162 APP Sensor 2 Signal
42 - - Not Used
43 TN 1274 5-Volt Reference
44 GY 1884 Cruise Control Set/Coast and Resume/Accelerate Switch Signal
45 - - Not Used
46 PU 420 TCC Brake Switch/Cruise Control Release Signal
47 GY 705 5-Volt Reference
48 YE 447 Starter Relay Coil Control
49-50 - - Not Used
51 D-GN 335 Low Speed Cooling Fan Relay Control
52 - - Not Used
53 BN/WH 379 CPP Switch Signal
54 D-GN 1433 PNP/Clutch Start Switch Signal
55 - - Not Used
56 BK 2751 Low Reference
Powertrain Control Module (PCM) C2 Terminal Identification

GM784850Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15357131
  • 73-Way F GT 280 Micro 64 Sealed (BK)
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 A/C Refrigerant Pressure Sensor Signal (C60)
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 Bank 1 Sensor X
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 Bank 1 Sensor X
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 1 Signal
69 GY 1716 Low Reference
70-72 - - Not Used
73 BK/WH 451 Ground
Powertrain Control Module (PCM) C3 Terminal Identification

GM1228487Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15357148
  • 56-Way F Micro 64 Sealed (GY)
Pin Wire Color Circuit No. Function
1-14 - - Not Used
15 TN/BK 231 Oil Pressure Switch Signal
16-21 - - Not Used
22 WH/BK 2932 5-Volt Reference
23-30 - - Not Used
31 GY/BK 433 BARO Sensor Signal
32-35 - - Not Used
36 OG/BK 6014 Low Reference
37 D-GN/WH 428 EVAP Canister Purge Solenoid Control
38-43 - - Not Used
44 PU 401 Signal Low - Front/VSS Low Signal/OSS Low Signal
45 YE 400 Signal High - Front/VSS High Signal/OSS High Signal
46-56 - - Not Used
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