This is the transmission wiring harness, the loom that carries signals between the transmission and the ECU so the vehicle shifts correctly and reports accurate diagnostics. It is a used harness inspected for end to end continuity, connector pin condition, insulation flexibility, and loom integrity, with no melted insulation or rodent damage. It is the right fix when a melted or chafed trans harness causes shift faults or trouble codes. An important note on naming: the 'Ascender' nameplate is associated with Isuzu (2003 to 2008), a rebadged GM midsize SUV related to the GMC Envoy and Chevy TrailBlazer, not Infiniti. Because of that, confirm fit by your VIN or by the OEM part number on your old harness, and our team will verify the exact vehicle before anything ships.
| Item | Details |
|---|---|
| Continuity | End to end on the transmission circuits. |
| Pins | Connector pins straight, seated, and clean. |
| Loom | Insulation flexible, loom intact, no melt or chew. |
Your VIN or the OEM part number from the old harness The exact vehicle and year, since the name alone is not enough Your transmission and engine combination A photo of your old connector ends if possible
| Item | Details |
|---|---|
| INCLUDED | The transmission wiring harness as pictured for the application you confirm. |
| NOT INCLUDED | TCM, sensors, solenoids, and other looms, unless ordered. |
| Tools You Need | Standard hand tools and a qualified technician so every connector lands in the right place. |
This transmission wiring harness is offered as follows:
| Vehicle | Compatibility |
|---|---|
| Confirm by VIN | The Ascender nameplate is associated with Isuzu, not Infiniti |
| GM midsize platform | Related to GMC Envoy and Chevy TrailBlazer, confirm by VIN |
Because the 'Ascender' nameplate is associated with the Isuzu Ascender (2003 to 2008), a rebadged GM midsize SUV, fitment must be confirmed by VIN or by the OEM part number from your old harness. We disclose the donor details before shipping.
Not sure this harness matches your vehicle? Call (240) 301-0095 with your VIN or the part number on your old loom. Our team confirms the exact match and the donor details before your order ships.
Quality control for this part includes:
This is a used harness inspected the way wiring should be checked: continuity, pin condition, insulation flexibility, and loom integrity. Because the application must be confirmed by VIN, we verify the match with you before shipping, and a qualified technician should handle install.
| Application | Confirm exact vehicle and year by VIN |
|---|---|
| Part Type | Transmission wiring harness |
| Connects | Transmission to the ECU |
| Material | High-grade copper wiring, heat-resistant insulation |
| Connectors | Weather-sealed, OEM style |
| Wire Gauge | 14 to 16 AWG |
| Temperature | Rated to 125 C (257 F) |
| Naming Note | Ascender nameplate is associated with Isuzu, not Infiniti |
| Fitment Note | Match by VIN or OEM part number |
| Shipping | Free to all 50 states, no core charge |
| Warranty | 15 day replacement warranty from delivery |
| Condition | Used, inspected before shipping |
| Sku | vaz406 |
Contact (240) 301-0095 within 15 days of delivery.
