P1155 MINI Code - O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2
Quick Answer
P1155 MINI indicates O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2. Common causes include Faulty O2 Sensor Heater Bank 2 Sensor 2, O2 Sensor Heater Bank 2 Sensor 2 harness is open or shorted, O2 Sensor Heater Bank 2 Sensor 2 circuit poor electrical 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
- P1155 MINI indicates O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2.
- Common causes
- Common causes include Faulty O2 Sensor Heater Bank 2 Sensor 2, O2 Sensor Heater Bank 2 Sensor 2 harness is open or shorted, O2 Sensor Heater Bank 2 Sensor 2 circuit poor electrical 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 P1155 MINI Description
What are the Possible Causes of the DTC P1155 MINI?
- Faulty O2 Sensor Heater Bank 2 Sensor 2
- O2 Sensor Heater Bank 2 Sensor 2 harness is open or shorted
- O2 Sensor Heater Bank 2 Sensor 2 circuit poor electrical connection
How to Fix the DTC P1155 MINI?
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 P1155 MINI 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 P1155 MINI Code
What does OBDII code P1155 mean in a MINI?
P1155 indicates an intermittent issue with the O2 sensor heater circuit for Bank 2, Sensor 2.
What are the common symptoms of code P1155 in a MINI?
Symptoms include a check engine light, reduced fuel efficiency, and potential rough engine performance.
What causes the P1155 code in a MINI?
Common causes include a faulty oxygen sensor, damaged wiring or connectors, or a blown fuse for the heater circuit.
How can I diagnose the P1155 code?
Use an OBDII scanner to verify the code, inspect the wiring and connectors for damage, and test the O2 sensor heater element for proper operation.
Can I drive my MINI with a P1155 code?
While the car may still be driveable, ignoring the code can lead to decreased fuel efficiency and potential damage to other components.
How do I fix the P1155 code in a MINI?
Repairs may include replacing the O2 sensor, repairing damaged wiring, or replacing a blown fuse in the heater circuit.
How much does it cost to fix the P1155 code?
The cost depends on the repair needed. Replacing an O2 sensor typically costs between $150-$300, including parts and labor.
How can I prevent the P1155 code from recurring?
Regular maintenance, including checking the wiring and ensuring the O2 sensors are functioning properly, can help prevent this issue.
Is Bank 2 Sensor 2 the upstream or downstream sensor?
Bank 2 Sensor 2 refers to the downstream (post-catalytic converter) oxygen sensor on the side of the engine opposite Bank 1.
What tools are needed to repair the P1155 code?
You may need an OBDII scanner, a multimeter for testing the heater circuit, and basic tools like wrenches to replace the sensor.
Discuss the causes and fixes for P1155 MINI OBDII Code
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