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SRS AIR BAG DIAGNOSIS TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-225 DTC B1472: Seat Belt Pre-Tensioner (LH) (Squib) System Fault for Power Supply Circuit (Short-Circuit CAUTION If DTC B1472 is set in the SRS-ECU, always diag- . CIRCUIT OPERATION . DTC SET CONDITIONS . TROUBLESHOOTING HITS • Damaged wiring harnesses or connectors • Short to the power supply in the driver's seat belt pre-tensioner (squib) harness • Malfunction of the SRS-ECU . SEAT BELT AIR BAG DRIVE CIRCUIT SRS-ECU CONNECTOR CONNECTOR Driver's Seat Belt Pre-Tensioner (Squib) Circuit : CONNECTOR CONNECTED: ON CONNECTOR DISCONNECTED: OFF AC305362 CONNECTOR: C-122 C-122 (Y) AE SRS-ECU AC306920AB CONNECTOR: D-21 D-21 (B) FOWARD CENTER |