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COMBINATION METER ASSEMBLY TSB Revision CHASSIS ELECTRICAL 54A-68 STEP 2. Using scan tool MB991958, read SRS diagnostic YES : Refer to GROUP 52B, Diagnosis-Diagnostic Trouble NO : Go to Step 3. STEP 3. Recheck for diagnostic trouble code. 1. Erase the DTC. Q: Is the check result satisfactory? YES : A poor connection, open circuit or other intermittent malfunction is present in the lines between the NO : Replace SRS-ECU and then go to step 4. STEP 4. Recheck for diagnostic trouble code. 1. Erase the DTC. Q: Is the check result satisfactory? YES : The procedure is complete. DTC U1120: Failure Information on Powertrain Control Module (Related to Engine) CAUTION If DTC U1120 is set in the combination meter, CAUTION If DTC U1120 has been set, SWS related DTC 021 CAUTION The engine control system- related DTC may be .) Diagnose the engine control sys- tem first when the engine control system- related . CIRCUIT OPERATION . DTC SET CONDITION The combination meter communicates with the pow- . TECHNICAL DESCRIPTION (COMMENT) Current trouble • The powertrain control module or the combina- tion meter may be defective. |