Body Diagnostic Trouble Code Guides
Free step-by-step guides to diagnose Body OBD-II trouble codes. Choose your subsystem below.
Browse by Subsystem
All Body DTC Codes
B0100
The B0100 code signals a fault in the Electronic Frontal Sensor 1, the primary detector for frontal ...
B1000
The B1000 code signals that the air‑bag control unit (ECU) has detected an internal fault and cannot...
B1318
The B1318 code tells the vehicle’s body control module that the on‑board battery voltage is below th...
B1325
B1325 signals that the on‑board battery voltage is outside the calibrated range (too high or too low...
B1342
The B1342 code signals an internal hardware fault inside the Body Control Module (BCM). The module’s...
B1600
The B1600 code indicates that the Passive Anti-Theft System (PATS) has received an incorrect key cod...
B2799
The B2799 code tells the vehicle’s control module that the immobilizer (anti‑theft) system is not co...