DTC codes
Been driving the 1994 Fleetwood Southwind Storm (454 TBI w/4L80E) to/from work (18 miles each way) and upon parking today I was greeted with the 'Service Engine Soon' lamp. Engine is and has been runn...
Forum Discussion
I recall a 3x code on my car MAP sensor.. Took me like 1 minute to fix once I knew it was Emissions related (Re-connected sensor tube). That would have been 33 or 34
These are GM codes
Code 35 IAC problem or idle error
Code 68 A/C clutch relay circuit error (shorted to ground)
Code 71 A/C evaporator temp sensor circuit error (low temp indicated)
I do not know the IAC so can not help you with that
68 I would inspect all wiring to the A/C clutch
71 Suggests the Evaporator is icing up.. May be related to the 68
These are GM codes
Code 35 IAC problem or idle error
Code 68 A/C clutch relay circuit error (shorted to ground)
Code 71 A/C evaporator temp sensor circuit error (low temp indicated)
I do not know the IAC so can not help you with that
68 I would inspect all wiring to the A/C clutch
71 Suggests the Evaporator is icing up.. May be related to the 68
