OBD Guide

P2AAC

Diesel Fuel Presence Sensor Circuit

P2AAC is an OBD-II diagnostic trouble code meaning: Diesel Fuel Presence Sensor Circuit. Common causes: open or short circuit in the sensor circuit, malfunction of the diesel fuel sensor. 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 idling
  • Problems starting the engine

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the diesel fuel sensor
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check connections and sensor connector
  3. Replace the diesel fuel sensor if necessary
  4. Check and replace wiring harness if necessary
  5. Test the engine control unit

Related codes

Error P2AAC by Vehicle Brand

FAQ

What does the P2AAC code mean?

P2AAC is an OBD-II diagnostic trouble code that indicates: Diesel Fuel Presence Sensor Circuit

What causes a P2AAC error code?

The most common causes of P2AAC include: Open or short circuit in the sensor circuit; Malfunction of the diesel fuel sensor; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P2AAC diagnostic trouble code?

To fix P2AAC: Check the integrity of the sensor circuit. Check connections and sensor connector. Replace the diesel fuel sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2AAC?

Yes, but get it checked soon

How much does it cost to fix P2AAC?

The estimated repair cost for P2AAC is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat