P1153 – Infiniti DTC

Infiniti DTC P1153 – H02S Insufficient Switching Bank 2 Sensor 1

DTC P1153 meaning on Infiniti

1. DTC: P1153
2. Definition: H02S Insufficient Switching Bank 2 Sensor 1
3. Meaning: The oxygen sensor (O2 sensor) in Bank 2 Sensor 1 is not switching between rich and lean air/fuel mixtures as expected.

Infiniti DTC P1153 symptoms

• Check Engine Light (CEL) illuminated
• Poor fuel economy
• Engine running rough or misfiring
• Reduced engine performance

Infiniti DTC P1153 causes

• Failed Bank 2 Sensor 1 oxygen sensor
• Wiring or connector issues in the oxygen sensor circuit
• Exhaust leaks near the oxygen sensor
• Engine running too rich or too lean

Infiniti DTC P1153 seriousness

• If left unresolved, it can lead to decreased fuel efficiency and potential damage to the catalytic converter.
• It is recommended to address this issue promptly to prevent further complications.

How to diagnose DTC P1153 on Infiniti

1. Use an OBD-II scanner to retrieve the specific DTC code P1153.
2. Inspect the Bank 2 Sensor 1 oxygen sensor and its wiring for any visible damage or corrosion.
3. Check for exhaust leaks near the oxygen sensor.
4. Perform a scan tool test to monitor the oxygen sensor’s switching activity.

How to fix DTC P1153 on Infiniti

1. Replace the Bank 2 Sensor 1 oxygen sensor if it is faulty.
2. Repair any damaged wiring or connectors in the oxygen sensor circuit.
3. Address any exhaust leaks near the oxygen sensor.
4. If the engine is running too rich or too lean, diagnose and fix the underlying issue.

How to erase DTC P1153 on Infiniti

1. After fixing the root cause of the DTC P1153, use an OBD-II scanner to clear the code.
2. Follow the scanner’s instructions to erase the DTC P1153 from the vehicle’s memory.
3. Ensure that the issue has been resolved before clearing the code to prevent it from reoccurring.