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HEADLIGHT TSB Revision CHASSIS ELECTRICAL 54A-145 STEP 2. Using scan tool MB991958, diagnose the CAN bus CAUTION To prevent damage to scan tool MB991958, always turn the Scan Tool (M.U.T.-III) ." (2) Turn the ignition switch from "LOCK" (OFF) position to "ON" position. (3) Diagnose the CAN bus line. YES : Go to Step 3. ). STEP 3. Using scan tool MB991958, read the ETACS-ECU scan tool (M.U.T.-III) (2) Turn the ignition switch to the "ON" position. YES : Diagnose the ETACS-ECU. Refer to ETACS, . NO : Go to Step 4. STEP 4. Using scan tool MB991958, check actuator test. check that the high-beam indicator light illuminates (Refer ). (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Replace the ETACS-ECU. AC608435 Data link connector MB991827 MB991824 MB991910 AB |