These CAN-BUS test plugs let you keep alive the communication between the ECU and lift pump while troubleshooting or repairing other issues with the truck that may require the main connectors to be unplugged. Excellent diag tool!
For 2017-2019 GM 6.6L Duramax L5P
These plugs can be utilized so that the factory modules do not have to be left plugged into the harness during troubleshooting and testing other items on the truck.
