B12xx OBD-II Codes (B1200–B1299)
11 fault codes in the B12xx range. Click any code for causes, diagnostic steps, severity, and common fixes.
B1200 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
B1201 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
B1202 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
B1203 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
B1204 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
B1205 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
B1206 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
B1207 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
B1208 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
B1209 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
B1210 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