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WINDSHIELD WIPER AND WASHER TSB Revision EXTERIOR 51-55 STEP 3. Use the scan tool MB991958 to check if an ." Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to GROUP 54A ETACS, "Diagnostic trouble code chart ." NO : Go to Step 4. STEP 4. Using scan tool MB991958, read the lighting ." Q: Is the diagnostic trouble code set? YES : Diagnose the lighting control sensor. [Diagnosis Code: (Refer to GROUP 54A − Diagnosis Code Chart ) or service data ( ).] NO : Go to Step 5. STEP 5. Connector check: C-316 ETACS-ECU connector YES : Go to Step 6. AC608435 Data link connector MB991827 MB991824 MB991910 AB |