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SRS AIR BAG DIAGNOSIS TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-239 DTC B1C48: Front Passenger's Pre-tensioner (Squib) System (Shorted to Squib Circuit Power CAUTION If DTC B1C48 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 power supply in the passenger's seat belt pre-tensioner (squib) harness • Malfunction of the SRS-ECU SEAT BELT CONNECTOR CONNECTOR SRS-ECU Seat Belt Pre-Tensioner (RH) (Squib) Circuit AC708951AD Connector: C-36 C-36 (Y) AC708954 AH Connector: D-40 D-40 (B) |