Glow plug control module -output stage
Glow plug(s) -defective
Glow plug control module -voltage supply fault
Transmission Fan Relay Condition
Ambient/battery temperature sensor
Too Much Secondary Air Injected
Too Little Secondary Air Injected
EGR Valve Position
Turbocharger (TC) boost pressure pressure too low/high
Engine coolant temperature (ECT) sensor implausible signal
