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SYMPTOM PROCEDURES SIMPLIFIED WIRING SYSTEM (SWS) 54B-265 • MB991910: MUT-III Main Harness A • MB991813: SWS Monitor Kit • MB991806: SWS Monitor Cartridge • MB991812: SWS Monitor Harness (For Column-ECU) • MB991822: Test Probe Harness STEP 1. Use Diagnostic Tool MB991958 to select "ECU • Column switch (column-ECU) • Front-ECU CAUTION To prevent damage to Diagnostic Tool MB991958, always monitor ." (2) Turn the ignition switch to the "LOCK" (OFF) position. procedure below to display "ECU COMM Check." (4) Diagnostic Tool MB991958 should show "OK" on the "ECU COMM Check" menus for both the "COLUMN ECU" and Q: Is "OK" displayed for both the "COLUMN ECU" and "FRONT ECU" menus? to Inspection Procedure A-2 "Communication with the ." "NG" is displayed for the "FRONT ECU" menu : Refer to Inspection Procedure A-4 "Communication with the ." 00DB076A MB991910 DATA LINK CONNECTOR MB991824 MB991827 AC302210 COLUMN SWITCH COLUMN SWITCH MB991812 AB |