OBD Guide
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P1453

Exhaust Gas Temperature Sensor 1 Open/Short to B+

P1453 is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor 1 Open/Short to B+. Common causes: egt 1 temperature sensor malfunction, broken or damaged wiring. 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 Is On
  • Possible increase in fuel consumption
  • Reduced engine power
  • Incorrect operation of the EGR system
  • Unstable idle

Causes

  • EGT 1 temperature sensor malfunction
  • Broken or damaged wiring
  • Short circuit to positive on-board network
  • Poor contact in the sensor connector
  • ECU malfunction (rare)

How to Fix

  1. Check the integrity of the sensor wiring
  2. Check the resistance of the EGT sensor
  3. Inspect connectors for oxidation
  4. Replace EGT temperature sensor if necessary
  5. Check the voltage in the sensor circuit

Related codes

P1454P1455P1456

Error P1453 by Vehicle Brand

BMWJaguarVolkswagen

FAQ

What does the P1453 code mean?

P1453 is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor 1 Open/Short to B+

What causes a P1453 error code?

The most common causes of P1453 include: EGT 1 temperature sensor malfunction; Broken or damaged wiring; Short circuit to positive on-board network; Poor contact in the sensor connector.

How do I fix a P1453 diagnostic trouble code?

To fix P1453: Check the integrity of the sensor wiring. Check the resistance of the EGT sensor. Inspect connectors for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1453?

Yes, but get it checked soon

How much does it cost to fix P1453?

The estimated repair cost for P1453 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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