LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2007 >> 6 Mazdaspeed >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Body Control System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Body Control System

BODY CONTROL MODULE (BCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Detection condition
DTC B1317 Battery voltage high Input voltage from the battery is excessively high
DTC B1318 Battery voltage low Input voltage from the battery is excessively low
DTC B1342 ECU is faulted BCM microcomputer malfunction
DTC B2572 Driver door lock switch short to ground Short to GND in wiring harness between BCM and driver-side door lock-link switch
DTC B2721 Trunk lid ajar output short to ground Short to GND in wiring harness between BCM and trunk compartment light switch
DTC B1873 Turn signal/hazard power feed circuit short to ground Short to GND in wiring harness between BCM and hazard warning switch
DTC B1320 Door ajar LF circuit open Open circuit in wiring harness between BCM and door switch (driver-side)
DTC B1328 Door ajar RF circuit open Open circuit in wiring harness between BCM and door switch (passenger-side)
DTC B1572 Door ajar LR circuit open Open circuit in wiring harness between BCM and door switch (LH)
DTC B1614 Rear wiper interval switch input circuit short to ground Short to GND in wiring harness between BCM and rear wiper and washer switch (INT)
DTC B1520 Hood latch switch circuit open Open circuit in wiring harness between BCM and hood latch switch
DTC B1506 Light turn signal right circuit short to ground Short to GND in wiring harness between BCM and turn switch
DTC B2218 Door lock switch circuit short to ground Short to GND in wiring harness between BCM and door lock switch
DTC B1311 Unlock switch circuit open Open circuit in wiring harness between BCM and driver-side door lock-link switch (unlock signal)