You need to determine the build date of the generator, remove the generator and auxiliary generator, if required, from the vehicle, install the new generator, route the engine harness generator inline below the main branch of the engine harness, connect the 4-way engine harness connector to the new jumper harness connector, P/N 20987250, route the jumper harness connector over the main branch of the engine harness and connect the 2-way connector to the generator, verify that there is a battery charge of 12 to 16 volts, and then reprogram the engine control module (ECM).
By BobGM Specialist
28/10/2022