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HOMESERVICE MANUALSCHEVROLET2005MALIBU LSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - 3.5L (LX9) - INTRODUCTIONCOMPONENT LOCATORPOWERTRAIN CONTROL MODULE (PCM) CONNECTORS
2005 Chevrolet Malibu LS

Powertrain Control Module (PCM) Connectors

2005 Chevrolet Malibu LSSECTION Powertrain Control Module (PCM) Connectors
Powertrain Control Module (PCM) C1

GM1228485Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15430208
  • 56-Way F Micro-Pack 64 Series Sealed (BU)
Pin Wire Color Circuit No. Function
1 TN/BK 2500 High Speed GMLAN Serial Data Bus+
2 TN 2501 High Speed GMLAN Serial Data Bus-
3 - - Not Used
4 GY 2700 5-Volt Reference B
5 - - Not Used
6 BN/WH 419 MIL Control
7 TN 5514 Low Reference
8 OG/BK 1057 Low Reference
9 - - Not Used
10 WH 1310 EVAP Canister Vent Solenoid Control
11 - - Not Used
12 OG/BK 1057 Low Reference
13-14 - - Not Used
15 PU 1807 Class 2 Serial Data (Primary)
16-17 - - Not Used
18 BN 4 Accessory Voltage
19 PK 639 Ignition 1 Voltage
20 RD/WH 540 Battery Positive Voltage
21 - - Not Used
22 BN 818 Vehicle Speed Signal
23 YE 447 Starter Relay Coil Control
24 BN 5069 Main Relay Control
25 - - Not Used
26 D-GN 890 Fuel Tank Pressure Sensor Signal
27-30 - - Not Used
31 OG/BK 380 A/C Refrigerant Pressure Sensor Signal
32 WH 17 Stop Lamp Switch Signal
33 D-GN/WH 459 A/C Compressor Clutch Relay Control
34-36 - - Not Used
37 D-GN/WH 465 Fuel Pump Relay Control High
38-42 - - Not Used
43 PU 1589 Fuel Level Sensor Signal
44 - - Not Used
45 PU 5526 Tap Up/Tap Down Switch Signal
46-47 - - Not Used
48 D-GN 335 Low Speed Cooling Fan Relay Control
49 - - Not Used
50 D-BU 473 High Speed Cooling Fan Relay Control
51-52 - - Not Used
53 GY 705 5-Volt Reference A
54-56 - - Not Used
Powertrain Control Module (PCM) C2

GM1335545Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15430226
  • 73-Way F Micro-Pack 64 Series Sealed (BK)
Pin Wire Color Circuit No. Function
1 BN 1456 EGR Valve Position Signal
2 OG/BK 1061 UART Serial Data (Secondary)
3 TN 800 UART Serial Data (Primary)
4 PK/BK 1746 Fuel Injector 3 Control
5 TN 1744 Fuel Injector 1 Control
6 L-GN/BK 1745 Fuel Injector 2 Control
7 TN/WH 845 Fuel Injector 5 Control
8 TN 2753 Low Reference
9 YE/BK 846 Fuel Injector 6 Control
10 L-BU/BK 844 Fuel Injector 4 Control
11 OG/WH 2122 IC 2 Control
12 GY/WH 3113 HO2S Heater Low Control (Bank 1 Sensor 1)
13 OG 1676 EGR Solenoid High Control
14 - - Not Used
15 PU 574 Low Reference
16 GY 435 EGR Solenoid Low Control
17 - - Not Used
18 L-GN 432 MAP Sensor Signal
19-20 - - Not Used
21 OG 631 12-Volt Reference
22 L-GN 1867 12-Volt Reference
23-24 - - Not Used
25 TN/WH 3211 HO2S Low Reference (Bank 2 Sensor 1)
26 BN/WH 633 CMP Sensor Signal
27 L-BU/BK 647 Medium Resolution Engine Speed Signal
28-29 - - Not Used
30 OG/BK 469 Low Reference
31 - - Not Used
32 PK/BK 632 Low Reference
33 GY 5047 5-Volt Reference
34 GY 2704 5-Volt Reference A
35 - - Not Used
36 GY 2303 Low Reference
37 YE 2174 Low Reference
38 D-BU 496 Knock Sensor 1 Signal
39 GY/BK 1798 Drain Wire
40 GY 1716 Low Reference
41 D-GN/WH 428 EVAP Canister Purge Solenoid Control
42-46 - - Not Used
47 TN/WH 3111 HO2S Low Reference (Bank 1 Sensor 1)
48 PU/WH 3110 HO2S Reference Voltage (Bank 1 Sensor 1)
49-52 - - Not Used
53 OG 225 Generator Turn On Signal
54 L-BU 1876 Knock Sensor 2 Signal
55 YE 410 ECT Sensor Signal
56 OG/BK 645 Drain Wire
57 TN/BK 231 Oil Pressure Switch Signal
58-59 - - Not Used
60 PU/WH 3210 HO2S Reference Voltage (Bank 2 Sensor 1)
61 PU 2121 IC 1 Control
62 L-GN 3212 HO2S Heater Low Control (Bank 2 Sensor 1)
63 L-BU 2123 IC 3 Control
64-72 - - Not Used
73 BK/WH 451 Ground
Powertrain Control Module (PCM) C3

GM1335548Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15430211
  • 56-Way F Micro 64 Series Sealed (GY)
Pin Wire Color Circuit No. Function
1-2 - - Not Used
3 TN 3221 HO2S Low Signal (Bank 2 Sensor 2)
4 TN/WH 3121 HO2S Low Signal (Bank 1 Sensor 2)
5 YE/BK 1227 TFT Sensor Signal
6 YE 492 MAF Sensor Signal
7 - - Not Used
8 GY/WH 3122 HO2S Heater Low Control (Bank 1 Sensor 2)
9 - - Not Used
10 OG/WH 3223 HO2S Heater Low Control (Bank 2 Sensor 2)
11 OG/BK 1230 A/T ISS High Signal
12 YE 400 VSS High Signal
13-14 - - Not Used
15 GY 773 Transmission Range Switch Signal C
16-17 - - Not Used
18 PU 3220 HO2S High Signal (Bank 2 Sensor 2)
19 PU 3120 HO2S High Signal (Bank 1 Sensor 2)
20-21 - - Not Used
22 YE 772 Transmission Range Switch Signal B
23 WH 776 Transmission Range Switch Signal P
24 YE 657 TCC Release Switch Signal
25 - - Not Used
26 TN 472 IAT Sensor Signal
27-28 - - Not Used
29 D-BU 1225 Transmission Fluid Pressure Switch Signal B
30 OG 1226 Transmission Fluid Pressure Switch Signal C
31-32 - - Not Used
33 L-GN 1222 1-2 Shift Solenoid Valve Control
34 TN/WH 771 Transmission Range Switch Signal A
35-38 - - Not Used
39 BN 418 TCC PWM Solenoid Valve Control
40-43 - - Not Used
44 PU 401 VSS Low Signal
45 - - Not Used
46 YE/BK 1223 2-3 Shift Solenoid Valve Control
47 OG/BK 1228 PC Solenoid Valve High Control (Sol. A)
48 TN 2762 Low Reference
49 D-BU/WH 1231 A/T ISS Low Signal
50 TN/BK 2760 Low Reference
51 L-BU/WH 1229 PC Solenoid Valve Low Control (Sol. A)
52-56 - - Not Used
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.