OBD Guide

P242D

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3

P242D is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3. Common causes: open or short circuit in the egt sensor circuit, exhaust gas temperature sensor malfunction. 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 operation at idle
  • Increased emissions of harmful substances

Causes

  • Open or short circuit in the EGT sensor circuit
  • Exhaust gas temperature sensor malfunction
  • Poor contact in the sensor connector
  • Corroded or damaged wiring
  • Engine control unit malfunction

How to Fix

  1. Check the continuity of the EGT sensor circuit
  2. Inspect the sensor connectors and connections
  3. Check the resistance of the exhaust gas temperature sensor
  4. Replace faulty EGT sensor if necessary
  5. Reset the fault code and check for its reoccurrence

Related codes

Error P242D by Vehicle Brand

FAQ

What does the P242D code mean?

P242D is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3

What causes a P242D error code?

The most common causes of P242D include: Open or short circuit in the EGT sensor circuit; Exhaust gas temperature sensor malfunction; Poor contact in the sensor connector; Corroded or damaged wiring.

How do I fix a P242D diagnostic trouble code?

To fix P242D: Check the continuity of the EGT sensor circuit. Inspect the sensor connectors and connections. Check the resistance of the exhaust gas temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P242D?

Yes, but get it checked soon

How much does it cost to fix P242D?

The estimated repair cost for P242D is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat