Holley EFI 2009+ GM 4L60E Transmission Control Harness 558-455
Specifications:
| Description_INV | GM 4L60 (2009+) TRANS HARNESS |
| Description_ASC | Requires software version 5.0 build 100 or higher and ECU firmware 5.0 build 110 or higher |
| Description_DES | 2009+ GM 4L60E Transmission Control Harness |
| Description_EXT | Plug and Play with Dominator ECU |
| Description_MKT | Expanding on our Transmission Control options from Holley EFI. This new harness 558-455 from Holley EFI provides plug and play transmission control for the 2009+ GM 4L60 when used with a Dominator ECU. The 2009+ GM 4L60E contains an internal turbine speed sensor, which was not on the previous model year transmissions. Additionally, the valve body range selector is wired and controlled differently from the ECU. |
| Description_FAB | Built in Relay - Must be wired to a switched 12v source. |
| Description_FAB | Plug and play with 2009+ GM 4L60E Transmissions |