What are the possible causes of DTC P12F9 Chevrolet?
NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.
- Faulty cylinder deactivation exhaust flow valve
- The cylinder deactivation exhaust flow valve harness is open or shorted
- Poor electrical connection in the cylinder deactivation exhaust flow valve circuit
How to repair DTC P12F9 Chevrolet?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Check if Chevrolet has issued a factory service bulletin for code P12F9 (2013 – Up models):
What is the cost to diagnose code P12F9 Chevrolet?
Labor: 1.0
The cost to diagnose the Chevrolet P12F9 code is 1.0 hour of labor. Diagnostic time and labor rates at auto repair shops vary depending on the location, vehicle make and model, and even engine type. Most auto repair shops charge between $75 and $150 per hour.
What are the possible symptoms of code P12F9 Chevrolet?
- Check engine light on (or Service Engine Soon warning light)
What does Chevrolet code P12F9 mean?
The cylinder deactivation exhaust flow control system consists of valves installed at the muffler inlet. The exhaust flow control system is used to adjust 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 does not meet factory specifications.