OBD Guide

P2A55

Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit

P2A55 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $17–56.

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

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Engine transition to emergency mode
  • Check Engine Light Illuminates
  • Problems when switching to alternative fuels

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Malfunction of the temperature sensor itself
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Clean sensor connector contacts
  3. Check the sensor resistance (compare with the nominal value)
  4. Replace temperature sensor if necessary
  5. Check the operation of the engine control unit

Related codes

Error P2A55 by Vehicle Brand

FAQ

What does the P2A55 code mean?

P2A55 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit

What causes a P2A55 error code?

The most common causes of P2A55 include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Malfunction of the temperature sensor itself; Wiring harness damage.

How do I fix a P2A55 diagnostic trouble code?

To fix P2A55: Check the integrity of the wiring to the sensor. Clean sensor connector contacts. Check the sensor resistance (compare with the nominal value). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A55?

Yes, but get it checked soon

How much does it cost to fix P2A55?

The estimated repair cost for P2A55 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat