P1117 – Audi DTC

Audi DTC P1117 – O2 Sensor Heater Circuit, Bank1-Sensor2 Short to Ground

DTC P1117 meaning on Audi

The Diagnostic Trouble Code (DTC) P1117 for Audi indicates an issue with the O2 sensor heater circuit in Bank 1, Sensor 2. This fault code specifically points to a short to ground in the O2 sensor heater circuit of the second oxygen sensor on the bank 1 side of the engine.

Audi DTC P1117 symptoms

Symptoms of the DTC P1117 on an Audi may include:

• Check Engine Light (MIL) illuminated on the dashboard
• Decreased fuel efficiency
• Engine running rough or misfiring
• Increased emissions

Audi DTC P1117 causes

The common causes of the DTC P1117 on an Audi are:

• Short to ground in the O2 sensor heater circuit
• Wiring or connector issues in the O2 sensor circuit
• Defective O2 sensor heater

Audi DTC P1117 seriousness

The DTC P1117 should not be ignored as it can lead to poor engine performance, increased emissions, and potential damage to the catalytic converter over time. It is recommended to address this issue promptly to prevent further complications.

How to diagnose DTC P1117 on Audi

To diagnose the DTC P1117 on an Audi, follow these steps:

1. Use an OBD-II scanner to retrieve the fault code and verify the issue.
2. Inspect the wiring and connectors in the O2 sensor heater circuit for any damage or corrosion.
3. Test the O2 sensor heater for continuity and proper operation.

How to fix DTC P1117 on Audi

To fix the DTC P1117 on an Audi, you can:

1. Repair any damaged wiring or connectors in the O2 sensor heater circuit.
2. Replace the faulty O2 sensor heater if necessary.
3. Clear the fault code using an OBD-II scanner after the repair is completed.

How to erase DTC P1117 on Audi

To erase the DTC P1117 on an Audi:

1. Ensure the underlying issue causing the fault code has been resolved.
2. Use an OBD-II scanner to clear the fault code from the vehicle’s memory.
3. Perform a test drive to ensure the Check Engine Light does not reappear.

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