P123C FORD Possible Causes
- Faulty turbocharger system
- Turbocharger system wiring harness open or shorted
- Poor electrical connection in turbocharger system circuit
How is P123C FORD Code Repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check Engine Light on (or Service Engine Soon warning light)
P123C FORD Meaning
The Powertrain Control Module (PCM) monitors the turbocharger system. The PCM sets the OBDII code when the turbocharger system does not meet factory specifications.