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STEP 2. Using scan tool MB991958, read the diagnostic ZC501967 AC404789 ZC5019680000 MB991824 MB991827 MB991910 Data link connector To prevent damage to scan tool MB991958, always turn the (1) Connect scan tool MB991958. Refer to "How to connect scan (2) Turn the ignition switch to the "ON" position. (3) Check whether the ETACS-ECU related DTC is set. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q:Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to GROUP 54Ad, NO: Go to Step 3. STEP 3. Using scan tool MB991958, check data list. ZC501967 AC404789 ZC5019680000 MB991824 MB991827 MB991910 Data link connector To prevent damage to scan tool MB991958, always turn the (1) Connect scan tool MB991958. Refer to GROUP 54Ad, "How (2) Turn the ignition switch to the "ON" position. (3) Check the data list of the ETACS. ⦆ Turn the ignition switch to the LOCK (OFF) position. Item No. Item name Normal 254 IG voltage Battery (4) Turn the ignition switch to the "LOCK" (OFF) position. OK: Normal condition is displayed. Q:Is the check result normal? YES: Go to Step 4. NO: Refer to GROUP 54Ad, Inspection Procedure 2: ETACS- ECU does not receive any signal from the ignition switch STEP 4. Check ETACS-ECU connector C-309 for loose, Q:Is ETACS-ECU connector C-309 in good condition? DOOR 42Ab-51 POWER WINDOW DIAGNOSIS |