Posts Tagged: OBDII Manufacturer Specific Trouble Codes for GM

OBDII Manufacturer Specific Trouble Codes for GM

OBDII Manufacturer Specific Trouble Codes for GM The rules for OBDII require all manufacturers to utilize a set of global/generic trouble codes. This is a partial list of OBDII Manufacturer Specific Trouble Codes for GM. Manufacturers are allowed to use “enhanced/manufacturer specific” powertrain codes that start at P1XXX and go up from there. Inexpensive scan tools usually can’t read enhanced codes. Plus, there are Body “B” codes, Chassis “C” codes, Communication “U” codes that the cheapo units can’t read. Parts store units usually only read generic powertrain P codes. So … Read More