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DTC Set Conditions

This DTC is set under one of the following cases while the SRS-ECU is monitoring the passenger air bag OFF indicator light drive circuit:
When a short circuit occurs in the passenger air bag OFF indicator light drive circuit.
When a malfunction is detected in the output transistor inside the SRS-ECU.

However, if the vehicle condition returns to normal, DTC B1488 will be automatically erased, and the passenger air bag OFF indicator light will go out.