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DIAGNOSIS <TC-SST> TSB Revision TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST) 22C-301 LOGIC FLOW CHARTS (Monitor Sequence) . DTC SET CONDITIONS Check Conditions • Voltage of battery: 8 V or more. JUDGMENT CRITERIA • FET (Field Effect Transistor) output: (Battery volt- age − 2 V) or more. (160 millisecond) . OBD-II DRIVE CYCLE PATTERN The FET channel output remains (Battery voltage − 2 V) or less for 160 milliseconds. . PROBABLE CAUSES • Malfunction of TC-SST-ECU DIAGNOSTIC PROCEDURE Required Special Tools: • MB991958 Scan Tool (M.U.T.-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) STEP 1. Scan tool CAN bus diagnostics YES : Go to Step 2. Troubleshooting .) After repairing the CAN bus line, go to Step 2. AC710659 START No Good Malfunction END Monitoring condition met Continuous failure No Yes Yes Yes FET* output No *FET : Field Effect Transistor |