Control Module Testing

Next you are instructed to attach the MOST control unit cable P/N 663 122 (2) and the MOST test loop P/N 663 124 (4).
This is a crucial step and must not be ignored. Failure to complete this step will result in incorrect readings and results.
Remove the test loop

Fig 1: Attaching Most Control Unit Cable P/N 663 122 And Most Test Loop P/N 663 124
Courtesy of BMW OF NORTH AMERICA, INC.
Remove the SVS harness from the module
Remove the fiber optical insert (4) from the SVS harness plug.
Insert the free end of the MOST CM cable P/N 663 122 (5) into the SVS harness plug and plug the assembly into the SVS module.
Follow the DISplus/GT1 test module instructions.

Fig 2: Inserting Free End Of Most CM Cable P/N 663 122 Into SVS Harness Plug
Courtesy of BMW OF NORTH AMERICA, INC.