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SRS AIR BAG DIAGNOSIS TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-230 DTC B1473: Seat Belt Pre-Tensioner (LH) (Squib) System Fault for Ground Circuit (Short-Circuited to CAUTION If DTC B1473 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 • Damaged wiring harnesses or connectors • Short to the ground in the driver's seat belt pre-tensioner (squib) harness • Malfunction of the SRS-ECU . Driver's Seat Belt Pre-Tensioner (Squib) Circuit SEAT BELT PRE-TENSIONER(LH) SRS-ECU CONNECTOR CONNECTOR : CONNECTOR CONNECTED: ON NOTE AC305362 CONNECTOR: C-122 C-122 (Y) AE SRS-ECU AC306920AB CONNECTOR: D-21 D-21 (B) FOWARD CENTER |