P1646 2011 FORD FUSION - Linear O2 Sensor Control Chip Bank 1
P1646 2011 Ford Fusion Possible Causes
- Faulty Powertrain Control Module (PCM)
P1646 2011 Ford Fusion Tech Notes
Reprogram or update PCM. Check for other DTCs and diagnose those first. Make sure to check for aftermarket performance products before installing a new PCM
Cost of diagnosing the P1646 2011 Ford Fusion code
The cost of diagnosing the P1646 2011 Ford Fusion 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.
P1646 2011 Ford Fusion Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1646 2011 Ford Fusion Meaning
The Powertrain Control Module (PCM
) monitors the application-specific integrated circuit that controls and monitors the Heated Oxygen Sensor
(HO2S). The test fails when the PCM
detects an internal circuit or communication concern.