OBD Guide

P1436

A/C Evaporator Air Temperature Circuit Low

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

Symptoms

  • Insufficient interior cooling
  • Air conditioning works intermittently
  • Hot air from deflectors
  • Climate system fault indication
  • Increased compressor noise

Causes

  • Evaporator temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Malfunction of the climate control unit

How to Fix

  1. Check the resistance of the evaporator temperature sensor
  2. Inspect wiring and connectors for damage
  3. Check the voltage in the sensor circuit
  4. Replace evaporator temperature sensor if necessary
  5. Test the operation of the system after repair

Related codes

Error P1436 by Vehicle Brand