P0155 2006 Ford Fusion Code - O2 Heater Circuit Bank 2 Sensor 1
Quick Answer
During testing the heated oxygen sensor (HO2S) heaters are checked for open and short circuits and excessive current draw. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0155 2006 Ford Fusion indicates O2 Heater Circuit Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0155 2006 Ford Fusion Description
What are the Possible Causes of the DTC P0155 2006 Ford Fusion?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0155 2006 Ford Fusion?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0155 2006 Ford Fusion 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 P0155 2006 Ford Fusion Code
1. What does the OBDII code P0155 mean on a 2006 Ford Fusion?
P0155 indicates a problem with the oxygen sensor heater circuit for Bank 2 Sensor 1, meaning the heater element in the sensor is not functioning properly.
2. What are the symptoms of code P0155 in a 2006 Ford Fusion?
Common symptoms include an illuminated check engine light, reduced fuel efficiency, rough idling, and increased emissions.
3. What causes code P0155 in a 2006 Ford Fusion?
Potential causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, or a blown fuse related to the O2 sensor heater.
4. Which oxygen sensor does P0155 refer to in a 2006 Ford Fusion?
P0155 refers to the upstream oxygen sensor (Sensor 1) on Bank 2, which is the side of the engine opposite Cylinder 1.
5. Can I drive my 2006 Ford Fusion with a P0155 code?
While the car is likely drivable, ignoring the issue can lead to poor fuel economy, higher emissions, and potential damage to other components.
6. How do I diagnose a P0155 code in a 2006 Ford Fusion?
Diagnosis involves checking the oxygen sensor’s wiring and connectors for damage, testing the sensor’s heater resistance with a multimeter, and inspecting related fuses.
7. How do I fix the P0155 code on a 2006 Ford Fusion?
Repairs may include replacing the faulty oxygen sensor, repairing damaged wiring, or replacing a blown fuse in the heater circuit.
8. How much does it cost to fix a P0155 code on a 2006 Ford Fusion?
The cost to replace an oxygen sensor typically ranges from $150 to $300, depending on labor rates and parts pricing.
9. Can a bad O2 sensor cause long-term issues in a 2006 Ford Fusion?
Yes, a faulty O2 sensor can lead to engine inefficiency, higher fuel consumption, and possible damage to the catalytic converter if not addressed.
10. What tools are needed to repair a P0155 code on a 2006 Ford Fusion?
You’ll need an OBDII scanner, a multimeter for testing resistance, and basic hand tools like a socket wrench and oxygen sensor socket for replacement.
Discuss the causes and fixes for P0155 2006 Ford Fusion OBDII Code
-
hi .. i have a 2007 ford crown vic .. and i want to know the difference
between an upstream and downstream o2 sensor .. and can i use an up one
in the position of a downstream sensor? -
Upstream and Downstream are two different type of sensor, and you can not exchange the sensors.
The "Upstream" O2 sensor before the catalytic converter is used by the ECM to adjust the air/fuel ratio. The "Downstream" O2 sensor after the catalytic converter is used for catalytic converter efficiency control and monitoring.
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