OBD Guide

P2529

Vacuum Reservoir Pressure Sensor Circuit Intermittent

P2529 is an OBD-II diagnostic trouble code meaning: Vacuum Reservoir Pressure Sensor Circuit Intermittent. Common causes: faulty vacuum tank pressure sensor, open or short circuit in the sensor circuit. 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 Is On
  • Unstable engine idling
  • Reduced braking system efficiency
  • Dips during acceleration
  • Increased fuel consumption

Causes

  • Faulty vacuum tank pressure sensor
  • Open or short circuit in the sensor circuit
  • Oxidized or damaged contacts in the connector
  • Vacuum leaks in the system
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit (open circuit, short circuit)
  2. Inspect and clean the sensor connector contacts
  3. Check the tightness of the vacuum system
  4. Replace pressure sensor if necessary
  5. Check and update the ECU firmware if necessary

Related codes

Error P2529 by Vehicle Brand

FAQ

What does the P2529 code mean?

P2529 is an OBD-II diagnostic trouble code that indicates: Vacuum Reservoir Pressure Sensor Circuit Intermittent

What causes a P2529 error code?

The most common causes of P2529 include: Faulty vacuum tank pressure sensor; Open or short circuit in the sensor circuit; Oxidized or damaged contacts in the connector; Vacuum leaks in the system.

How do I fix a P2529 diagnostic trouble code?

To fix P2529: Check the integrity of the sensor circuit (open circuit, short circuit). Inspect and clean the sensor connector contacts. Check the tightness of the vacuum system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2529?

Yes, but get it checked soon

How much does it cost to fix P2529?

The estimated repair cost for P2529 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat