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SRS AIR BAG DIAGNOSIS SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-152 DTC B1460: Seat Belt Pre-Tensioner (RH) (Squib) System Fault 1 (Short Circuit between Terminals of CAUTION If DTC B1460 is set in the SRS-ECU, always diag- . CIRCUIT OPERATION The SRS-ECU judges how severe a collision is by . DTC SET CONDITIONS This DTC is set if there is abnormal resistance . TROUBLESHOOTING HITS • Improper engaged connector or defective short spring* • Short circuit between the driver's seat belt pre-tensioner (squib) circuit terminals • Damaged connector(s) • Malfunction of the SRS-ECU • Refer to circuit diagrams GROUP- • Refer to configuration diagrams GROUP- . NOTE: *: The squib circuit connectors integrate a ). Therefore, if connec- tor D-26 or D-33 is damaged or improperly engaged, . DIAGNOSIS Required Special Tools: • MB991958: diagnostic tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991910: MUT-III Main Harness A • MB991865: Dummy resistor • MB991884: Resistor harness (For Pre-tensioner) 24DB063A CONNECTOR: D-26 SRS-ECU 63 55 51 69 61 66 58 65 64 5657 68 60 67 59 70 62 53 52 B A 54 D-26 (Y) D-26 FLOOR HARNESS CONNECTOR (REAR VIEW) AC307915AB CONNECTOR: D-33 D-33 (B) FORWARD CENTER |