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DIAGNOSIS TSB Revision CONTROLLER AREA NETWORK (CAN) 54C-387 STEP 21. Check the SRS-ECU for short circuit. Measure the resistance at SRS-ECU connector C-121. CAUTION A digital multimeter should be used. For details refer to (1) Disconnect SRS-ECU connector C-121, and measure the resistance at the component side of SRS-ECU connector (2) Measure the resistance between SRS-ECU connector terminals 32 and 43. OK: 1 k Ω or more Q: Does the resistance measure 1 k Ω or more? YES : If the resistance measures 1 k Ω or more, diagnose CAN bus lines thoroughly by referring to NO : If the resistance measures less than 1 k Ω, replace the SRS-ECU. AC305233 AJ CONNECTOR: C-121 HARNESS SIDE C-121 (Y) 48 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 AC209438 48 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 AC209438 TEST AU TEST COMPONENT SIDE: C-121 |