Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 379 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS & CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) C3
2006 Isuzu Ascender S, 5.3 M, 4WD
Engine Control Module (ECM) C3
2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Engine Control Module (ECM) C3
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.
Engine Control Module (ECM) C3
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1-2 | - | - | Not Available |
| 3 | 0.5 TN | 1667 | HO2S Low Signal - Bank 2 Sensor 1 (5.3L, 6.0L) |
| 4 | 0.5 PU | 1666 | HO2S High Signal - Bank 2 Sensor 1 (5.3L, 6.0L) |
| 5 | 0.5 PU | 1670 | HO2S High Signal - Bank 2 Sensor 2 (5.3L, 6.0L) |
| 6 | 0.5 TN | 1671 | HO2S Low Signal - Bank 2 Sensor 2 (5.3L, 6.0L) |
| 7 | 0.35 PU | 5428 | Generator Regulator Control |
| 8 | - | - | Not Available |
| 9 | 0.5 BN | 436 | Air Pump Relay Control (4.2L) |
| 10 | 0.5 GY | 5493 | Cylinder Shutoff Solenoid Control (3) (5.3L, 6.0L) |
| 11 | 0.5 D-BU | 5491 | Cylinder Shutoff Solenoid Control (1) (5.3L, 6.0L) |
| 12 | 0.35 TN/BK | 464 | Delivered Torque Signal |
| 13-14 | - | - | Not Available |
| 15 | 0.5 L-GN | 3212 | HO2S Heater Low Control - Bank 2 Sensor 1 (5.3L, 6.0L) |
| 16 | - | - | Not Available |
| 17 | 0.35 OG/BK | 463 | Requested Torque Signal |
| 18-20 | - | - | Not Available |
| 21 | 0.35 BK | 2751 | Low Reference |
| 22 | - | - | Not Available |
| 23 | 0.35 OG/BK | 469 | Low Reference |
| 24-25 | - | - | Not Available |
| 26 | 0.5 D-BU/WH | 6785 | Air Injection Reaction Control Valve 1 Low Reference (4.2L) |
| 27 | - | - | Not Available |
| 28 | - | - | Not Used |
| 29 | 0.35 GY | 23 | Generator Field Duty Cycle Signal |
| 30-32 | - | - | Not Available |
| 33 | 0.35 TN | 2501 | High Speed GMLAN Serial Data Bus - |
| 34 | - | - | Not Available |
| 35 | 0.35 BK | 2761 | Low Reference |
| 36 | - | - | Not Available |
| 37 | 0.35 GY | 2700 | 5-Volt Reference |
| 38 | - | - | Not Available |
| 39 | 0.35 GY | 2704 | 5-Volt Reference |
| 40-41 | - | - | Not Available |
| 42 | 0.5 BN/WH- | 6789 | Air Injection Reaction Control Valve 1-Volt Reference (4.2L) |
| 43 | - | - | Not Available |
| 44 | - | - | Not Used |
| 45-46 | - | - | Not Available |
| 47 | 0.35 OG/BK | 1786 | PNP Switch Signal |
| 48 | 0.5 D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 49 | - | - | Not Used |
| 50 | 0.5 RD/WH | 3223 | HO2S Heater Low Control - Bank 2 Sensor 2 (5.3L, 6.0L) |
| 51-52 | - | - | Not Available |
| 53 | 0.35 TN/WH | 2500 | High Speed GMLAN Serial Data Bus + |
| 54 | - | - | Not Available |
| 55 | 0.35 YE | 410 | ECT Sensor Signal |
| 56 | - | - | Not Available |
| 57 | 0.35 RD/BK | 380 | A/C Refrigerant Pressure Sensor |
| 58 | - | - | Not Available |
| 59 | 0.35 L-GN | 432 | MAP Sensor Signal |
| 60-61 | - | - | Not Available |
| 62 | 0.5 YE | 6787 | Secondary Air Injection Pressure Sensor Signal (4.2L) |
| 63 | - | - | Not Available |
| 64 | - | - | Not Used |
| 65 | 0.35 TN/BK | 231 | Oil Pressure Switch Signal (4.2L) |
| 66 | 0.35 YE | 400 | Signal High - Front |
| 67 | - | - | Not Available |
| 68 | 0.5 L-GN | 5492 | Cylinder Shutoff Solenoid Control (4) (5.3L, 6.0L) |
| 69 | 0.5 OG | 5494 | Cylinder Shutoff Solenoid Control (2) (5.3L, 6.0L) |
| 70-72 | - | - | Not Available |
| 73 | - | - | Not Used |
Connector Part Information
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Terminal Part Information
|
RENDER: 1.0x
NO RELATED
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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.