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TROUBLESHOOTING SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-112 NOTE: *: The squib circuit connectors integrate a DIAGNOSIS PROCEDURE STEP 1. MUT-III CAN bus diagnostics Use the MUT-III to diagnose the CAN bus lines. Q: Is the check result normal? YES : Go to Step 2. NO : Repair the CAN bus line (Refer to GROUP STEP 2. Check whether the diagnosis code is Check again if the diagnosis code is set. not reset. Q: Is the diagnosis code set? YES : Go to Step 3. NO : There is an intermittent malfunction such as STEP 3. MUT-III diagnosis code CAUTION To prevent damage to MUT-II/III, always turn the position. Q: Is diagnosis code B1519 set? YES : Go to Step 4. NO : Go to Step 5. STEP 4. Connector lock check: SRS-ECU (2) Disconnect connectors C-120, and then reconnect them. (3) Connect the negative battery terminal. diagnosis code. Q: Is diagnosis code B1450 set? YES : Go to Step 5. NO : The procedure is complete. It is assumed AC311438 AE C-120 (Y) Connector: C-120 Harness side |