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DIAGNOSIS TSB Revision KEYLESS OPERATION SYSTEM (KOS) 42B-99 DTC C1910: Transmitter low battery voltage abnormality 1
DTC C1920: Transmitter low battery voltage abnormality 2
DTC C1930: Transmitter low battery voltage abnormality 3
DTC C1940: Transmitter low battery voltage abnormality 4
DTC C1911: Reception abnormality 1
DTC C1921: Reception abnormality 2
DTC C1931: Reception abnormality 3
DTC C1941: Reception abnormality 4 CAUTION If there is any problem in the CAN bus lines, an incorrect . DTC SET CONDITION DTC C1910, C1920, C1930, C1940 • When the reception abnormality warning is activated because of the low battery voltage of the TPMS transmitter. DTC C1911, C1921, C1931, C1941 • When KOS-ECU cannot receive the signals from the TPMS transmitters while driving for about 20 minutes, this code is . TROUBLESHOOTING HINTS The most likely causes for this DTC to set are: • Low battery that is incorporated into the TPMS transmitter • Damaged wiring harness and connector • Registered IDs unmatched • Malfunction of TPMS transmitter • Malfunction of KOS-ECU DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: M.U.T.-III USB Cable • MB991910: M.U.T.-III Main Harness A STEP 1. Using scan tool MB991958, diagnose the CAN bus YES : Go to Step 3. − CAN Bus Diagnostics table ). On completion, go to Step 2. |