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, 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 294 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS & CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSTRANSMISSION CONTROL MODULE (TCM)
2006 Isuzu Ascender S, 4.2 S, 4WD
Transmission Control Module (TCM)
2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Transmission Control Module (TCM)
WARNING: This page is about a different car, the 2008 Saab 9-7X. However, it is still accessible from the selected car via links, so may be relevant.
Connector Part Information
Terminal Part Information
|
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.5 BN | 418 | TC PWM Solenoid Valve Control |
| 2 | 0.5 L-GN | 1222 | 1-2 Shift Solenoid Valve Control |
| 3 | 0.35 OG | 1983 | ISS Signal |
| 4 | - | - | Not Available |
| 5 | 0.35 RD | 381 | Signal High - Front |
| 6 | 0.35 L-BU/BK | 6106 | High Speed GMLAN Serial Data Bus - (CAN) |
| 7 | 0.35 D-BU | 6105 | High Speed GMLAN Serial Data Bus + (CAN) |
| 8-10 | - | - | Not Available |
| 11 | 0.35 YE | 243 | Accessory Voltage |
| 12-13 | - | - | Not Available |
| 14 | 0.5 WH | 687 | 3-2 Shift Solenoid Valve Control |
| 15 | - | - | Not Available |
| 16 | 0.35 L-GN/BK | 822 | VSS Low Signal |
| 17 | 0.5 L-BU/WH | 1229 | PC Solenoid Valve Low Control |
| 18-19 | - | - | Not Available |
| 20 | 0.5 YE/BK | 1223 | 2-3 Shift Solenoid Valve Control |
| 21-22 | - | - | Not Available |
| 23 | 0.35 GY | 773 | Transmission Range Switch Signal C |
| 24 | 0.5 PK | 1224 | Transmission Fluid Pressure Switch Signal A |
| 25 | 0.5 TN/BK | 422 | TCC Solenoid Valve Control |
| 26-28 | - | - | Not Available |
| 29 | 0.35 BK/WH | 771 | Transmission Range Switch Signal A |
| 30 | 0.5 BK | 2762 | Low Reference |
| 31 | 0.5 PK | 139 | Ignition 1 Voltage |
| 32 | 0.35 OG | 540 | Battery Positive Voltage |
| 33 | 0.5 RD | 1226 | Transmission Fluid Pressure Switch Signal C |
| 34 | - | - | Not Available |
| 35 | 0.5 YE/BK | 1227 | TFT Sensor Signal |
| 36 | - | - | Not Available |
| 37 | 0.35 TN | 2501 | High Speed GMLAN Serial Data Bus - (CAN) |
| 38 | 0.35 TN/WH | 2500 | High Speed GMLAN Serial Data Bus + (CAN) |
| 39 | 0.35 WH | 776 | Transmission Range Switch Signal P |
| 40 | 0.5 RD/BK | 1228 | PC Solenoid Valve High Control |
| 41 | 0.35 PU/WH | 821 | VSS High Signal |
| 42 | 0.35 L-BU | 1320 | Stop Lamp Switch Signal |
| 43 | - | - | Not Available |
| 44 | 0.5 D-BU | 1225 | Transmission Fluid Pressure Switch Signal B |
| 45 | 0.35 L-BU | 1984 | Low Reference |
| 46 | 0.35 YE | 772 | Transmission Range Switch Signal B |
| 47-48 | - | - | Not Available |
| 49 | 2 BK/WH | 451 | Ground (4.2L) |
| 2 BK | 451 | Ground (5.3L) |
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.