B13xx OBD-II Codes (B1300–B1399)

24 fault codes in the B13xx range. Click any code for causes, diagnostic steps, severity, and common fixes.

B1300 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1301 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1302 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1303 low
Accessory Delay Relay Coil Circuit Open — the relay that keeps radio and power windows alive after key-off until a door is opened (Ford/Lincoln/Mercury)
B1304 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1305 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1306 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1307 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1308 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1309 low
Power Door Lock Circuit — Short to Ground
B1310 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1311 moderate
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1312 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1313 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1314 low
Battery Saver Relay Coil Circuit Open (Ford); Evaporator Inlet Temp Sensor (some GM)
B1315 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1316 low
Battery Saver Relay Coil Circuit Short to Ground (Ford); In-Car Temperature Sensor Open Circuit (GM)
B1317 moderate
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1318 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1319 low
Driver Door Ajar Circuit Failure (door-ajar switch)
B1320 low
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1325 moderate
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
B1342 serious
ECU Is Defective — an internal failure of a control module, commonly the GEM/Generic Electronic Module (Ford/Lincoln/Mercury); Front Door Satellite Sensor Right Communication Error — a side-impact SRS crash sensor (Nissan)
B1352 serious
Manufacturer-specific body code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
← All Body ranges All categories Browse by make