| DTC code | Diagnosis monitor code | Inspection item |
|---|---|---|
| - | 1 | System normal |
| B0100 | 2 | Short-circuit of bag |
| B0101 | 3 | Opening bag |
| B0102 | 4 | GND short-circuit of bag |
| B0103 | 6 | Bag short-circuited to BATT |
| B0130 | 7 | Short-circuit of pretensioner |
| B0131 | 8 | Opening pretensioner |
| B0132 | 9 | GND short-circuit of pretensioner |
| B0133 | 11 | Pretensioner short-circuited to BATT |
| B1101 | 16 | Short circuit of safing sensor |
| B1103 | Opening safing sensor | |
| B1112 | Ignition drive circuit malfunction | |
| B1115 | Malfunction of G sensor | |
| B1116 | H malfunction of G sensor | |
| B1117 | L malfunction of G sensor | |
| B1121 | Voltage converter voltage abnormality | |
| B1122 | Backup capacitor's capacitance abnormality | |
| B1124 | Monitor current limit circuit malfunction | |
| B1125 | CPU monitor abnormality | |
| B1131 | ROM-RAM abnormality | |
| B2000 | 12 | Drop in power voltage |
| B2002 | 13 | Warning light circuit abnormality |
| B2003 | 14 | With or without malfunction |