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SRS AIR BAG DIAGNOSIS TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-339 STEP 4. Recheck for diagnostic trouble code. position. (3) Check if DTC is set. YES : Replace the SRS-ECU. as a poor connection or open circuit in the CAN bus ) DTC U0212: Steering Wheel Sensor CAN Timeout CAUTION • If the DTC U0212 is set, be sure to diagnose the CAN main bus line. • When replacing the ECU, always check that the communication circuit is normal. . DTC SET CONDITION If the signal from steering wheel sensor cannot be . JUDGMENT CRITERIA Because of the CAN-B bus circuit malfunction, if . TROUBLESHOOTING HINTS • The CAN bus line may be defective • The ETACS-ECU may be defective • The SRS-ECU may be defective 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 (Vehicles with CAN communication system) |