SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 223 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 5.3L - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROL MODULE CONNECTORSENGINE CONTROL MODULE (ECM) C2
2006 Isuzu Ascender S, 5.3 M, 4WD

Engine Control Module (ECM) C2

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Engine Control Module (ECM) C2
WARNING: This page is about a different car, the 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) C2 Connector End View
GM1673472Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) C2 Connector Parts Information

Connector Part Information 
  • OEM: 15499466 (Early Production)/13574286 (Late Production)
  • Service: 88988931
  • Description: 73-Way F Receptacle 0.64 2.8 Series Sealed (BK) (Early Production)/48-Way F Recptacle 0.64 Series Sealed (BK) (Late Production)
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 Repait Kit
  • Core/Insulation Crimp: See Terminal Repait Kit
  • Release Tool/Test Probe: See Terminal Repait Kit
Engine Control Module (ECM) C2 Connecter Terminal Identification

Pin Wire Color Circuit No. Function
1 PU 2121 IC 1 Control
2 TN 1664 HO2S Low Signal - Bank 1 Sensor 1
3 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
4 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
5 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
6 L-BU 1876 Knock Sensor 2 Signal
7 GY 2303 Knock Sensor Signal
8 D-BU 496 Knock Sensor 1 Signal
9 GY 1716 Knock Sensor Signal
10 - - Not Used (Early Production)
- - Not Available (Late Production)
11 YE 581 TAC Motor Control 1
12 BN 582 TAC Motor Control 2
13 PK 839 Ignition 1 Voltage
14-15 - - Not Used (Early Production)
- - Not Available (Late Production)
16 PK/BK 1746 Fuel Injector 3 Control
17 PU/WH 2128 IC 8 Control
18 D-GN/WH 2124 IC 4 Control
19 BN/WH 2130 Low Reference
20-22 - - Not Used (Early Production)
- - Not Available (Late Production)
23 BN/WH 633 Low Reference (Early Production)
PK/BK 632 Low Reference (Late Production)
24 BK 2755 Low Reference
25-26 - - Not Used (Early Production)
- - Not Available (Late Production)
27 D-BU/WH 1869 Low Reference (Early Production)
YE/BK 1868 Low Reference (Late Production)
28 - - Not Used (Early Production)
- - Not Available (Late Production)
29 BK/WH 1704 Low Reference
30-31 - - Not Used (Early Production)
- - Not Available (Late Production)
32 L-GN/BK 1745 Fuel Injector 2 Control
33 RD 2127 IC 7 Control
34 D-GN 2125 IC 5 Control
35 BN 2129 Low Reference
36-38 - - Not Used (Early Production)
- - Not Available (Late Production)
39 RD 631 12-Volt Reference
40 GY 2705 5-Volt Reference
41 - - Not Used (Early Production)
- - Not Available (Late Production)
42 BK 2760 Low Reference
43 L-GN 1867 12-Volt Reference
44 L-BU/BK 1688 5-Volt Reference
45-47 - - Not Used (Early Production)
- - Not Available (Late Production)
48 D-BU/WH 878 Fuel Injector 8 Control
49 BK/WH 845 Fuel Injector 5 Control
50-51 - - Not Used (Early Production)
- - Not Available (Late Production)
52 YE/BK 846 Fuel Injector 6 Control
53 RD/WH 2122 IC 2 Control
54 L-BU/WH 2126 IC 6 Control
55 L-BU 2123 IC 3 Control
56-58 - - Not Used (Early Production)
- - Not Available (Late Production)
59 PK/BK 632 CMP Sensor Signal (Early Production)
BN/WH 633 CMP Sensor Signal (Late Production)
60 TN/WH 332 Oil Pressure Sensor Signal
61 - - Not Used (Early Production)
- - Not Available (Late Production)
62 TN 472 IAT Sensor Signal
63 YE/BK 1868 CKP Sensor Signal (Early Production)
D-BU/WH 1869 CKP Sensor Signal (Late Production)
64 D-GN 485 TP Sensor 1 Signal
65 - - Not Used (Early Production)
- - Not Available (Late Production)
66 PU 486 TP Sensor 2 Signal
67 YE 492 MAF Sensor Signal
68 BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
69 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2
70 L-BU/BK 844 Fuel Injector 4 Control
71 RD/BK 877 Fuel Injector 7 Control
72 BK 1744 Fuel Injector 1 Control
73 BK 450 Ground
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.