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SYMPTOM PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-135 STEP 4. Check the input signal by using "FUNCTION Check the input signals from the following switches: • Ignition switch: ON • Driver’s door: Open • All door: Closed (1) Operate scan tool MB991958 according to the procedure below to display "OTHER ALARM" (2) Check that normal conditions are displayed for the items described in the table below. Q: Does scan tool MB991958 display the items "IG SW (IG1)" and "BUZZER" as normal condition? Replace the ETACS-ECU. Check that the turn-signal Normal condition is not displayed for "IG SW (IG1)" : Refer to Inspection Procedure M-2 "ETACS-ECU Normal condition is not displayed for "BUZZER" : Replace the ETACS-ECU. Check that the turn-signal ITEM NO. ITEM NAME NORMAL ITEM 30 IG SW (IG1) ON ITEM 43 BUZZER ON AC305411AB MB991910 DATA LINK CONNECTOR MB991827 MB991824 MB991806 MB991812 AC302210 COLUMN SWITCH COLUMN SWITCH MB991812 AB |