OBD Guide

P01A0

Alternative Fuel Tank A Pressure Sensor Circuit Low

P01A0 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank A Pressure Sensor Circuit Low. Common causes: alternate fuel tank a pressure sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable engine operation
  • Problems starting the engine

Causes

  • Alternate Fuel Tank A Pressure Sensor Malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • ECU malfunction

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the voltage and resistance of the pressure sensor
  3. Replace pressure sensor if necessary
  4. Check and clear error codes after repair

Related codes

Error P01A0 by Vehicle Brand

FAQ

What does the P01A0 code mean?

P01A0 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank A Pressure Sensor Circuit Low

What causes a P01A0 error code?

The most common causes of P01A0 include: Alternate Fuel Tank A Pressure Sensor Malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; ECU malfunction.

How do I fix a P01A0 diagnostic trouble code?

To fix P01A0: Check the integrity of the wiring harness and connectors. Check the voltage and resistance of the pressure sensor. Replace pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01A0?

Limited driving only, diagnose soon

How much does it cost to fix P01A0?

The estimated repair cost for P01A0 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat