OBD Guide

P1D7C

Reactor Temperature Sensor Range/Performance Problem High

P1D7C is an OBD-II diagnostic trouble code meaning: Reactor Temperature Sensor Range/Performance Problem High. Common causes: reactor temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle

Causes

  • Reactor temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Mechanical damage to the sensor
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the reactor temperature sensor
  2. Check the integrity of the sensor circuit
  3. Clean sensor connector contacts
  4. Replace the reactor temperature sensor if necessary
  5. Check the operation of the engine control unit

Related codes

FAQ

What does the P1D7C code mean?

P1D7C is an OBD-II diagnostic trouble code that indicates: Reactor Temperature Sensor Range/Performance Problem High

What causes a P1D7C error code?

The most common causes of P1D7C include: Reactor temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Mechanical damage to the sensor.

How do I fix a P1D7C diagnostic trouble code?

To fix P1D7C: Check the condition of the reactor temperature sensor. Check the integrity of the sensor circuit. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D7C?

Yes, but get it checked soon

How much does it cost to fix P1D7C?

The estimated repair cost for P1D7C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat