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HOMESERVICE MANUALSISUZU2006ASCENDER S, 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 379 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS & CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) X2
2006 Isuzu Ascender S, 4.2 S, 4WD

Engine Control Module (ECM) X2

2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Engine Control Module (ECM) X2
WARNING: This page is about a different car, the 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X2 Connector End View
GM1673472Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2

Pin Wire Circuit Function
1 0.5 PU 2121 IC 1 Control
2 0.5 TN 1664 HO2S Low Signal - Bank 1 Sensor 1
3 0.5 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
4 0.5 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
5 0.5 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
6 0.35 L-BU 1876 KS 2 Signal
7 0.35 GY 2303 KS 2 Signal
8 0.35 D-BU 496 KS 1 Signal
9 0.35 GY 1716 KS 1 Signal
10 - - Not Available
11 0.5 YE 581 TAC Motor Control 1
12 0.5 BN 582 TAC Motor Control 2
13 0.5 PK 839 Ignition Voltage
14 0.35 BN 2198 Camshaft Position Actuator Solenoid High Control (4.2L)
15 - - Not Available
16 0.5 PK/BK 1746 Fuel Injector 3 Control (5.3L, 6.0L)
17 0.5 PU/WH 2128 IC 5 Control (4.2L)
0.5 PU/WH 2128 IC 8 Control (5.3L, 6.0L)
18 0.5 D-GN/WH 2124 IC 4 Control (5.3L, 6.0L)
19 0.5 BN/WH 2130 Low Reference (5.3L, 6.0L)
20-22 - - Not Available
23 0.35 PK/BK 632 Low Reference
24 0.35 PU 114 Low Oil Pressure Switch Signal (4.2L)
0.35 BK 2755 Low Reference (5.3L, 6.0L)
25-26 - - Not Available
27 0.5 BK 407 Low Reference (4.2L)
0.35 YE/BK 1868 Low Reference (5.3L, 6.0L)
28 - - Not Available
29 0.35 D-GN/WH 1704 Low Reference
30-31 - - Not Available
32 0.5 YE/BK 846 Fuel Injector 6 Control (4.2L)
0.5 L-GN/BK 1745 Fuel Injector 2 Control (5.3L, 6.0L)
33 0.5 L-BU 2123 IC Control (4.2L)
0.5 RD 2127 IC 7 Control (5.3L, 6.0L)
34 0.5 D-GN/WH 2124 IC 4 Control (4.2L)
0.5 D-GN 2125 IC 5 Control (5.3L, 6.0L)
35 0.5 BN 2129 Low Reference (5.3L, 6.0L)
36-38 - - Not Available
39 0.35 RD 631 12-Volt Reference
40 0.35 GY 2705 5-Volt Reference (5.3L, 6.0L)
41 - - Not Available
42 0.5 BK 2760 Low Reference
43 0.35 YE 6259 Starter Enable Relay Control (4.2L)
0.35 L-GN 1867 12-Volt Reference (5.3L, 6.0L)
44 0.35 GY 2701 5-Volt Reference (4.2L)
0.35 L-BU/BK 1688 5-Volt Reference (5.3L, 6.0L)
45 - - Not Available
46 0.35 BK 2199 Low Reference (4.2L)
47 - - Not Available
48 0.5 BK/WH 845 Fuel Injector 5 Control (4.2L)
0.5 D-BU/WH 878 Fuel Injector 8 Control (5.3L, 6.0L)
49 0.5 L-BU/BK 844 Fuel Injector 4 Control (4.2L)
0.5 BK/WH 845 Fuel Injector 5 Control (5.3L, 6.0L)
50-51 - - Not Available
52 0.5 L-GN/BK 1745 Fuel Injector 2 Control (4.2L)
0.5 YE/BK 846 Fuel Injector 6 Control (5.3L, 6.0L)
53 0.5 L-BU/WH 2122 IC 6 Control (4.2L)
0.5 RD/WH 2122 IC 2 Control (5.3L, 6.0L)
54 0.35 RD/WH 2122 IC 2 Control (4.2L)
0.5 L-BU/WH 2126 IC 6 Control (5.3L, 6.0L)
55 0.5 L-BU 2123 IC 3 Control (4.3L, 6.0L)
56-58 - - Not Available
59 0.35 BK 630 CMP Sensor Signal (4.2L)
0.35 BN/WH 633 CMP Sensor Signal (5.3L, 6.0L)
60 0.35 TN/WH 332 Oil Pressure Sensor Signal (5.3L, 6.0L)
61 - - Not Available
62 0.5 TN 472 IAT Sensor Signal
63 0.5 BN/WH 633 CKP Sensor Signal (4.2L)
0.35 D-BU/WH 1869 CKP Sensor Signal (5.3L, 6.0L)
64 0.35 D-GN 485 TP Sensor 1 Signal
65 - - Not Available
66 0.35 PU 486 TP Sensor 2 Signal
67 0.50 YE 492 MAF Sensor Signal
68 0.5 D-GN 676 HO2S Heater Low Control - Bank 1 Sensor 1 (4.2L)
0.5 BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1 (5.3L, 6.0L)
69 0.5 BK/WH 1423 HO2S Heater Low Control - Bank 1 Sensor 2 (4.2L)
0.5 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2 (5.3L, 6.0L)
70 0.5 L-BU/BK 844 Fuel Injector 4 Control (5.3L, 6.0L)
71 0.5 PK/BK 1746 Fuel Injector 3 Control (4.2L)
0.5 RD/BK 877 Fuel Injector 7 Control (5.3L, 6.0L)
72 0.5 BK 1744 Fuel Injector 1 Control
73 3 BK/WH 451 Ground (4.2L)
3 BK 451 Ground (5.3L, 6.0L)
Connector Part Information 
  • OEM: 13574286
  • Service: 88988931
  • Description: 48-Way F Receptacle 0.64 Series Sealed (BK)
Terminal Part Information- 
  • Pins: 1-5, 11-13, 16-19, 32-35, 42, 48-49, 52-55, 62, 67-72
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 6-9, 23-24, 27, 29, 39-40, 43-44, 59-60, 63-64, 66
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
  • Pins: 73
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
RENDER: 1.0x

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