P1192 – Jeep DTC

Jeep DTC P1192 – Inlet Air Temperature Circuit Low

DTC P1192 meaning on Jeep

1. DTC P1192 indicates that the Engine Control Module (ECM) has detected a low voltage condition in the Inlet Air Temperature (IAT) sensor circuit.
2. The IAT sensor measures the temperature of the air entering the engine and provides this information to the ECM for fuel delivery and ignition timing calculations.

Jeep DTC P1192 symptoms

• Check Engine Light (CEL) illuminated on the dashboard.
• Reduced engine performance or rough idling.
• Poor fuel efficiency.

Jeep DTC P1192 causes

• Faulty IAT sensor.
• Open or short circuit in the IAT sensor wiring.
• Corrosion or poor connection at the sensor or ECM connector.

Jeep DTC P1192 seriousness

1. While the vehicle may still be operable with DTC P1192, it can lead to poor engine performance and reduced fuel efficiency.
2. Continued driving with this issue unresolved may cause further damage to the engine over time.

How to diagnose DTC P1192 on Jeep

1. Use a scan tool to retrieve the DTC and freeze frame data.
2. Inspect the IAT sensor and its wiring for any visible damage or corrosion.
3. Check the sensor’s resistance using a multimeter to ensure it is within specifications.
4. Perform a continuity test on the sensor wiring to check for any open or short circuits.

How to fix DTC P1192 on Jeep

1. Replace the IAT sensor if it is found to be faulty.
2. Repair any damaged wiring or connectors in the IAT sensor circuit.
3. Clean any corrosion from the sensor or ECM connectors and ensure a secure connection.

How to erase DTC P1192 on Jeep

1. Use a scan tool to clear the DTC from the ECM memory.
2. After clearing the code, test drive the vehicle to ensure the DTC does not return.