Test 1: Diesel Engine Models

Disconnect pneumatic line from MVA port at Pneumatic System Equipment (PSE) control module. See Figure, Figure or Figure . Connect disconnected pneumatic line to Black connector on Vacuum/Pressure Tester (201 589 13 21 00). Access pneumatic distribution box, located on right side front door pillar. See VACUUM DIAGRAMS . Disconnect Green and Violet pneumatic lines from pneumatic distribution box. Apply 8.1 In. Hg (300 mbar) of vacuum to pneumatic line. If vacuum loss is not substantial, check and repair pneumatic lines as necessary. If vacuum loss is substantial, repair or replace pneumatic line and/or pneumatic distribution box.