# B1602 on the 2004 Mazda Mazda3

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name B1602

- [10009107](https://open.wenmarpro.com/bulletins/10009107), 2004-09-10: ENGINE NO CRANK ALONG WITH IMMOBILIZER MALFUNCTION. DIAGNOSTIC TROUBLE CODES P1260 \(IMMOBILIZER SYSTEM PROBLEM\) AND B1600/B1602 \(KEY ID NUMBER CANNOT BE READ\) AND/OR U2516 \(IC\-CAN BUS OFF TRANSMIT ERROR\) MAY BE STORED IN MEMORY. MAZDA M\-TIPS. \*TT