OBD Guide

P012A

Turbocharger/Supercharger Inlet Pressure Sensor A Circuit

P012A is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Inlet Pressure Sensor A Circuit. Common causes: malfunction of inlet pressure sensor, 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

  • Reduced engine power
  • Unstable engine operation
  • Increased fuel consumption
  • Check Engine light comes on
  • Turbo lag (delayed response to the gas pedal)

Causes

  • Malfunction of inlet pressure sensor
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Problems with power or grounding of the sensor
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check connections and contacts in connectors
  3. Check the supply voltage and grounding of the sensor
  4. Check the sensor readings using a diagnostic scanner
  5. If necessary, replace the inlet pressure sensor

Related codes

Error P012A by Vehicle Brand

FAQ

What does the P012A code mean?

P012A is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Inlet Pressure Sensor A Circuit

What causes a P012A error code?

The most common causes of P012A include: Malfunction of inlet pressure sensor; Open or short circuit in wiring harness; Poor contact in the sensor connector; Problems with power or grounding of the sensor.

How do I fix a P012A diagnostic trouble code?

To fix P012A: Check the integrity of the sensor wiring harness. Check connections and contacts in connectors. Check the supply voltage and grounding of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P012A?

Limited driving only, diagnose soon

How much does it cost to fix P012A?

The estimated repair cost for P012A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat