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DIAGNOSIS TSB Revision KEYLESS OPERATION SYSTEM (KOS) 42B-39 STEP 5. Recheck for diagnostic trouble code. position. (3) Check if DTC is set. YES : Replace KOS-ECU and register the ID codes (Refer to NO : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to use Troubleshooting/inspection Service Points − How to Cope with Intermittent Malfunction DTC B2204: Coding data mismatch CAUTION • When DTC B2204 is set, be sure to diagnose the CAN bus line. • When replacing the ECU, always check that the communication circuit is normal. . DTC SET CONDITION If the vehicle information data transmitted from the . TECHNICAL DESCRIPTION (COMMENT) KOS-ECU determines that the abnormality is present . TROUBLESHOOTING HINTS • Malfunction of KOS-ECU • Malfunction of ETACS-ECU DIAGNOSIS Required Special Tools: • MB991958 Scan Tool (M.U.T.-III Sub Assembly) • MB991824: Vehicles Communication Interface (V.C.I.) • MB991827 M.U.T.-III USB Cable • MB991910 M.U.T.-III Main Harness A |