P12FD GMC - Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 2
P12FD GMC Possible Causes
- Faulty Cylinder Deactivation Exhaust Flow Valve
- Cylinder Deactivation Exhaust Flow Valve harness is open or shorted
- Cylinder Deactivation Exhaust Flow Valve circuit poor electrical connection
First diagnose P12FD GMC code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P12FD GMC code
Labor: 1.0The cost of diagnosing the P12FD GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P12FD GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P12FD GMC MeaningThe cylinder deactivation exhaust flow control system consists of valves installed at the inlet of the muffler. The exhaust flow control system is used to tune the exhaust note. The Powertrain Control Module (PCM) monitors the Cylinder Deactivation Exhaust Flow Valve. The PCM sets the OBDII code when the Cylinder Deactivation Exhaust Flow Valve is not to factory specifications.
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