OBD Guide
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P1455

Exhaust Gas Temperature Sensor 1 Range/Performance

P1455 is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor 1 Range/Performance. Common causes: faulty exhaust gas temperature sensor 1, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Increased level of harmful emissions

Causes

  • Faulty exhaust gas temperature sensor 1
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the sensor connector and contacts
  3. Check sensor resistance
  4. Replace exhaust gas temperature sensor if necessary
  5. Reset the error code and check the system operation

Related codes

P1456P1457P1458

Error P1455 by Vehicle Brand

FordKiaLincolnMazdaMercuryVolkswagen

FAQ

What does the P1455 code mean?

P1455 is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor 1 Range/Performance

What causes a P1455 error code?

The most common causes of P1455 include: Faulty exhaust gas temperature sensor 1; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P1455 diagnostic trouble code?

To fix P1455: Check the integrity of the sensor circuit. Inspect the sensor connector and contacts. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1455?

Yes, but get it checked soon

How much does it cost to fix P1455?

The estimated repair cost for P1455 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat