Kia DTC P1121 – Throttle Position Sensor Signal Malfunction from ECM to TCM
DTC P1121 meaning on Kia
The DTC P1121 on a Kia indicates a Throttle Position Sensor Signal Malfunction from the Engine Control Module (ECM) to the Transmission Control Module (TCM).
Kia DTC P1121 symptoms
Common symptoms of DTC P1121 on a Kia may include:
- Check Engine Light illuminated
- Reduced engine power
- Transmission shifting issues
Kia DTC P1121 causes
The potential causes of DTC P1121 on a Kia may include:
- Faulty throttle position sensor
- Wiring or connector issues in the throttle position sensor circuit
- ECM or TCM communication problems
Kia DTC P1121 seriousness
DTC P1121 should be addressed promptly as it can lead to drivability issues and potential transmission problems if left unresolved.
How to diagnose DTC P1121 on Kia
To diagnose DTC P1121 on a Kia, you can perform the following steps:
- Use a diagnostic scanner to retrieve the trouble codes
- Inspect the throttle position sensor and its wiring for any visible damage
- Check the communication between the ECM and TCM
How to fix DTC P1121 on Kia
To fix DTC P1121 on a Kia, you may need to:
- Replace the faulty throttle position sensor
- Repair any damaged wiring or connectors in the sensor circuit
- Ensure proper communication between the ECM and TCM
How to erase DTC P1121 on Kia
To erase DTC P1121 on a Kia, you can use a diagnostic scanner to clear the trouble codes stored in the ECM and TCM memory.
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