Test Preparation
On SL500 and SLK230, connect Breakout Box (129 589 00 21 00) using Harness Adapter (202 589 16 63 00) to PSE control module.
On CL500, S320, S420 and S500, connect Breakout Box (129 589 00 21 00) using Harness Adapter (140 589 13 63 00) to the PSE control module.