P1454 Exhaust Gas Temperature Sensor Short 1 to Ground

OBD2 Code: P1454

Description: Exhaust Gas Temperature Sensor Short 1 to Ground

Definition: This code indicates that there is a short circuit in the exhaust gas temperature sensor circuit, specifically where it connects to ground. The sensor is responsible for monitoring the temperature of the exhaust gases and providing this data to the engine control module (ECM). A short to ground can cause incorrect readings or failure of the sensor, leading to potential issues with emissions and engine performance.

p1454: Exhaust Gas Temperature Sensor Short 1 to Ground

Typical Severity: Moderate

Common Causes

p1454 – Exhaust Gas Temperature Sensor Short 1 to Ground

Common causes of this OBD2 code include:

• Faulty exhaust gas temperature sensor
• Short circuit to ground in the wiring harness
• Corrosion or poor connection at the sensor or connector
• ECU (Engine Control Unit) issue

 

Common Misdiagnosis

OBD2 Code: P1454

Description: Exhaust Gas Temperature Sensor Short to Ground

Common Misdiagnosis: Replacing the exhaust gas temperature sensor without checking for wiring issues or a faulty control module.

 

Common Diagnostic Steps

OBD2 Code: P1454

Description: Exhaust Gas Temperature Sensor Short to Ground

• Verify the code with an OBD2 scanner and clear it to see if it returns.
• Inspect the exhaust gas temperature sensor wiring for signs of damage, such as fraying or melting.
• Check the sensor connector for corrosion or loose connections.
• Measure the resistance of the exhaust gas temperature sensor using a multimeter; compare it to manufacturer specifications.
• If applicable, inspect related fuses and replace any that are blown.
• Test for continuity between the sensor ground circuit and chassis ground; repair any open circuits found.
• If all wiring and connections are intact, replace the exhaust gas temperature sensor with a new one.
• After repairs, clear codes and perform a test drive to ensure no codes return.