OBD Guide

P0185

Fuel Temperature Sensor B Circuit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine idling

Causes

  • Fuel temperature sensor B malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with the ECU

How to Fix

  1. Check the integrity of the sensor circuit (open/short circuit)
  2. Check the sensor connector for oxidation
  3. Measure the sensor resistance (compare with the nominal value)
  4. Replace the fuel temperature sensor if necessary
  5. Reset the error and check if it returns

Related codes

Error P0185 by Vehicle Brand