P0485

Cooling fan power/ground circuit malfunction

P0484

Fan current

P0483

Fan performance

P0482

Fan 3 control circuit

P0481

Fan 2 control circuit

P0480

Fan 1 control circuit

P047F

Exhaust pressure control valve - Stuck open

P047E

Exhaust pressure sensor B - circuit intermittent/erratic

P047D

Exhaust pressure sensor B - circuit high

P047B

Exhaust pressure sensor B - circuit range/performance