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P1115 – Kia DTC

Kia DTC P1115 – Engine Coolant Temperature Signal from ECM to TCM

DTC P1115 meaning on Kia

DTC P1115 on a Kia indicates an issue with the Engine Coolant Temperature (ECT) signal sent from the Engine Control Module (ECM) to the Transmission Control Module (TCM). This fault code is triggered when the TCM detects a discrepancy or fault in the ECT signal communication.

Kia DTC P1115 symptoms

  • Check Engine Light (CEL) illuminated on the dashboard
  • Transmission shifting issues
  • Engine overheating or running too cold

Kia DTC P1115 causes

  • Defective Engine Coolant Temperature (ECT) sensor
  • Wiring or connector issues between the ECM and TCM
  • Faulty ECM or TCM

Kia DTC P1115 seriousness

The seriousness of DTC P1115 on a Kia depends on the underlying cause. Ignoring this fault code can lead to potential transmission issues, engine performance problems, and even overheating or damage to the engine components.

How to diagnose DTC P1115 on Kia

  1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
  2. Inspect the ECT sensor and its wiring for any visible damage or corrosion
  3. Check the connection between the ECM and TCM for any loose or damaged wires
  4. Perform a thorough inspection of the ECM and TCM for any signs of malfunction

How to fix DTC P1115 on Kia

  1. Replace the Engine Coolant Temperature (ECT) sensor if faulty
  2. Repair or replace any damaged wiring or connectors between the ECM and TCM
  3. If the ECM or TCM is found to be faulty, it may need to be replaced or reprogrammed

How to erase DTC P1115 on Kia

  1. Use a diagnostic scanner to clear the fault code from the ECM and TCM memory
  2. After fixing the underlying issue, ensure that the CEL is no longer illuminated

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