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Diagnostic Trouble Codes Table

WARNING: This page is about a different car, the 2004 Suzuki XL-7 and 2004 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: BCM System DTC Table
G00867206Courtesy of SUZUKI OF AMERICA CORP.
DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC Description
DTC B1121 (No. 21)  DRL Circuit Malfunction
DTC B1131 (No. 31)  Illumination Control Input Circuit Open
DTC B1141, B1142 (No. 41, 42)  Outside Air Temperature (Ambient Temp.) Sensor Circuit Open/Short to Ground
DTC B1151 (No. 51)  Driver Side Seat Belt Indicator Circuit Open
DTC B1170, B1171, B1172 (No. 70, 71, 72)  Factory Register Error, Memory Check Sum Error, Memory Write Error
DTC B1150 (No. 50)  Air Bag Communication Circuit Malfunction
DTC B1152 (No. 52)  Passenger Side Seat Belt Indicator Circuit Open
DTC B1153 (No. 53)  Driver Side Seat Belt Switch Circuit Malfunction
DTC B1154 (No. 54)  Passenger Side Seat Belt Switch Circuit Malfunction
DTC B1155 (No. 55)  OCM Circuit Malfunction
DTC B1156 (No. 56)  CAN Communication Error (H27 Engine Model with A/T Only)