Powertrain Control Module (PCM) Connector End view

2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Powertrain Control Module (PCM) Connector End view
Powertrain Control Module (PCM) C1

GM1228485Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15452125
  • 56-Way F Micro 64 Series Sealed (BU)
Pin Wire Color Circuit No. Function
1-2 - - Not Used
3 GY/BK 1694 4WD Low Signal (NP8)
4-5 - - Not Used
6 D-GN/WH 459 A/C Compressor Clutch Relay Control
7 BN 1271 Low Reference
8 PU 1272 Low Reference
9-10 - - Not Used
11 GY/BK 87 Cruise Control Resume/Accel Switch Signal (K34)
12 PU 1589 Fuel Level Sensor Signal
13 PK 839 Ignition 1 Voltage
14 - - Not Used
15 YE 710 Class 2 Serial Data
16 D-GN 1049 PCM Class 2 Serial Data
17 GY 2700 5-Volt Reference
18 PK 1020 Ignition 0 Voltage
19 PK 439 Ignition 1 Voltage
20 OG 440 Battery Positive Voltage
21 D-GN/WH 817 Vehicle Speed Signal
22 WH 1310 EVAP Canister Vent Solenoid Control
23 D-BU 2364 Cooling Fan Speed Signal
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 D-BU 84 Cruise Control Set/Coast Switch Signal (K34)
29 OG/BK 510 Low Reference
30 WH/BK 1164 5-Volt Reference
31 WH 121 Engine Speed Signal
32 L-BU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage (K34)
33 - - Not Used
34 BN 436 AIR Pump Relay Control (K18)
35-36 - - Not Used
37 D-GN/WH 465 Fuel Pump Relay Control
38 YE 5991 Powertrain Relay Coil 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
44-45 - - Not Used
46 PU 420 TCC Brake Switch/Cruise Control Release Signal
47 GY 2709 5-Volt Reference
48 YE/BK 625 Starter Enable Relay Control
49 GY 397 Cruise Control On Switch Signal (K34)
50 PU 806 Crank Voltage
51 WH/BK 2366 Cooling Fan Clutch Control
52-53 - - Not Used
54 D-GN 1433 PNP/Clutch Start Switch Signal
55 BK 2759 Low Reference
56 BK 2751 Low Reference
Powertrain Control Module (PCM) C2

GM1671569Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15452126
  • 73-Way F GT 280 Micro 64 Series Unsealed (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 597 5-Volt Reference
5 BN/WH 6789 Air Injection Reaction Control Valve #1 Volt Reference (K18)
6 GY 2701 5-Volt Reference
7 PU 486 TP Sensor 2 Signal
8 GY 2704 5-Volt Reference
9 L-BU/BK 1688 5-Volt Reference
10 D-GN/WH 2124 IC 4 Control
11-13 - - Not Used
14 PK/BK 632 Low Reference
15-16 - - Not Used
17 YE 573 CKP Sensor
18 PU 574 Low Reference
19 BK 2199 Low Reference
20 OG/BK 469 Low Reference
21 GY 2365 Low Reference
22 RD 631 12-Volt Reference
23-25 - - Not Used
26 BN/WH 633 CMP Sensor Signal
27 - - Not Used
28 PU 421 Air Injection Reaction Solenoid Relay Coil Control (K18)
29 - - Not Used
30 D-BU/WH 6785 Air Injection Reaction Control Valve #1 Low Reference (K18)
31 - - Not Used
32 TN 1664 HO2S Low Signal
33 BK 1744 Fuel Injector 1 Control
34 - - Not Used
35 YE 410 ECT Sensor Signal
36 BK/WH 1704 Low Reference
37 L-GN 432 MAP Sensor Signal
38 - - Not Used
39 BK 2752 Low Reference
40 PU 2121 IC 1 Control
41 YE 492 MAF Sensor Signal
42 L-BU 2123 IC 3 Control
43 - - Not Used
44 RD/WH 2122 IC 2 Control
45 GY 23 Generator Field Duty Cycle Signal
46 - - Not Used
47 BN 2198 Camshaft Position Actuator Solenoid High Control
48 PU/WH 1665 HO2S High Signal
49-50 - - Not Used
51 TN 472 IAT Sensor Signal
52 BK 2761 Low Reference
53 BK/WH 845 Fuel Injector 5 Control
54 YE/BK 846 Fuel Injector 6 Control
55 PK/BK 1746 Fuel Injector 3 Control
56 L-GN/BK 1745 Fuel Injector 2 Control
57 L-BU/BK 844 Fuel Injector 4 Control
58 D-GN 676 HO2S Heater Low Control
59 D-GN 2125 IC 5 Control
60 L-BU/WH 2126 IC 6 Control
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 - - Not Used
71 GY 2303 Low Reference
72 L-BU 1876 Knock Sensor 2 Signal
73 BK 450 Ground
Powertrain Control Module (PCM) C3

GM1283894Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15437820
  • 56-Way F Micro 64 Series Sealed (GY)
Pin Wire Color Circuit No. Function
1 PK 1224 Transmission Fluid Pressure Switch Signal A
2 GY 773 Transmission Range Switch Signal C
3 - - Not Used
4 TN/WH 1669 HO2S Low Signal
5 - - Not Used
6 RD/BK 1228 PC Solenoid Valve High Control
7 YE/BK 1227 TFT Sensor Signal
8-14 - - Not Used
15 TN/BK 231 Oil Pressure Switch Signal
16 - - Not Used
17 BK 2762 Low Reference
18 - - Not Used
19 PU/WH 1668 HO2S High Signal
20 BK/WH 771 Transmission Range Switch Signal A
21 WH 687 3-2 Shift Solenoid Valve Control
22-24 - - Not Used
25 TN/BK 422 TCC Solenoid Valve Control
26-29 - - Not Used
30 RD 1225 Transmission Fluid Pressure Switch Signal B
31 YE 6787 Air Injection Reaction Control Valve #1 Control (K18)
32 - - Not Used
33 L-GN 1222 1-2 Shift Solenoid Valve Control
34 TN/BK 464 Delivered Torque Signal
35 YE/BK 1223 2-3 Shift Solenoid Valve Control
36 PU 114 Low Oil Pressure Switch Signal
37 D-GN/WH 428 EVAP Canister Purge Solenoid Control
38 - - Not Used
39 BN 418 TCC PWM Solenoid Valve Control
40-42 - - Not Used
43 D-BU 1225 Transmission Fluid Pressure Switch Signal B
44 L-GN/BK 822 VSS Low Signal
45 PU/WH 821 VSS High Signal
46 BK/WH 1423 HO2S Heater Low Control
47 OG/BK 463 Requested Torque Signal
48 L-BU/WH 1229 PC Solenoid Valve Low Control
49 - - Not Used
50 YE 772 Transmission Range Switch Signal B
51 - - Not Used
52 WH 776 Transmission Range Switch Signal P
53-56 - - Not Used
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
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