TPS circuit voltage high — GM (1982–1995) (Pre-1996)
This is an OBD1 code specific to GM (1982–1995) vehicles manufactured before 1996. OBD1 was never standardized, so each manufacturer used their own code system.
⚠️ Important: OBD1 codes require special diagnostic equipment or GM (1982–1995)-specific scanners. Most generic modern scanners cannot read pre-1996 codes.
This is a reference only. For accurate diagnosis of GM (1982–1995) OBD1 codes, consult a specialist or dealer familiar with pre-1996 vehicles.