DTC B1509: Incorrect installation of SRS-ECU
caution
If DTC B1509 is set in the SRS-ECU, always diagnose the CAN main bus line.
DTC SET CONDITIONS
If SRS-ECU different from the unit compatible to vehicle is accidentally installed, this code will be set.
TROUBLESHOOTING HINTS
Malfunction of the SRS-ECU
Mismatch between vehicle and SRS-ECU specifications
DIAGNOSIS
Replace the SRS-ECU (Refer to
).
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).