P145E Mercury Code - PCV Heater Control 'B' Circuit
Quick Answer
The P145E code sets when the Powertrain Control Module (PCM) detects the actual Positive Crankcase Ventilation Heater Control (PCVHF) circuit voltage is less than or greater than the desired voltage. Common causes include Faulty Positive Crankcase Ventilation Heater Control (PCVHF), PCVHF harness is open or shorted, PCVHF electrical circuit poor connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P145E Mercury indicates PCV Heater Control 'B' Circuit.
- Common causes
- Common causes include Faulty Positive Crankcase Ventilation Heater Control (PCVHF), PCVHF harness is open or shorted, PCVHF electrical circuit poor connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P145E Mercury Description
What are the Possible Causes of the DTC P145E Mercury?
- Faulty Positive Crankcase Ventilation Heater Control (PCVHF)
- PCVHF harness is open or shorted
- PCVHF electrical circuit poor connection
How to Fix the DTC P145E Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P145E Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P145E Mercury Code
1. What does the OBDII code P145E mean on a Mercury vehicle?
P145E indicates an issue with the PCV Heater Control 'B' Circuit, which is responsible for heating the positive crankcase ventilation (PCV) system to improve efficiency in cold conditions.
2. What are the common symptoms of the P145E code in Mercury vehicles?
Symptoms may include a check engine light, poor engine performance, increased emissions, or rough idling, especially in cold weather.
3. What causes the P145E code on Mercury vehicles?
Common causes include a faulty PCV heater, damaged wiring or connectors in the circuit, or issues with the power supply to the PCV heater control circuit.
4. Can I drive my Mercury vehicle with the P145E code?
While it may be possible to drive, ignoring the code can lead to increased emissions and engine performance issues over time. Prompt diagnosis and repair are recommended.
5. How is the P145E code diagnosed on a Mercury vehicle?
A mechanic will typically use an OBDII scanner to confirm the code, inspect the PCV heater circuit and wiring for damage, and test the heater's functionality.
6. What repairs can fix the P145E code in Mercury vehicles?
Repairs may include replacing the PCV heater, repairing or replacing damaged wiring or connectors, or addressing issues with the power supply to the circuit.
7. How much does it cost to fix the P145E code in a Mercury vehicle?
Repair costs can vary but may range from $100 to $300 depending on the severity of the issue and labor rates in your area.
8. Can a dirty PCV valve cause the P145E code?
A dirty or clogged PCV valve itself is unlikely to cause this specific code, but it can contribute to overall PCV system issues that may trigger related codes.
9. How can I prevent the P145E code from occurring in my Mercury vehicle?
Regular maintenance of the PCV system, including inspections and cleaning, can help prevent issues that trigger this code.
10. Does the P145E code affect fuel economy in Mercury vehicles?
Yes, a malfunctioning PCV heater circuit can lead to poor engine performance and increased fuel consumption, especially in colder climates.
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