P2A04 MERCURY - Oxygen Sensor Circuit Range/Performance Bank 2 Sensor 2
P2A04 MERCURY Possible Causes
- Faulty Rear Heated Oxygen Sensor Bank 2
- Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
First diagnose P2A04 MERCURY 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.
P2A04 MERCURY Tech NotesReplacing the rear O2 Sensor bank 2 usually takes care of the problem.
Cost of diagnosing the P2A04 MERCURY code
Labor: 1.0The cost of diagnosing the P2A04 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P2A04 MERCURY Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2a04 Mercury DescriptionThe Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) for an out of range low voltage concern. The P2A04 code sets if the HO2S voltage is out of range low for a calibrated period of time.
P2A04 MERCURY More InformationNeed more information on how to fix the P2A04 MERCURY code?
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