GM OBD Trouble Code 75
Digital EGR solenoid #1 circuit error
On vehicles with three solenoid EGR valves an open or short on the solenoid 1 circuit will set code 75.
Fault Code Description
- 75 - Digital EGR solenoid #1 circuit error
Symptoms
- EGR solenoid 1 will not function
Common Problems
- Broken wire to EGR valve
- Faulty EGR valve
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