OBD Guide

P03AD

Cylinder 3 Pressure Sensor Circuit Intermittent/Erratic

P03AD is an OBD-II diagnostic trouble code meaning: Cylinder 3 Pressure Sensor Circuit Intermittent/Erratic. Common causes: broken or damaged sensor wires, poor contact in the sensor connector. Estimated repair cost: $56–167.

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

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Turning on the Check Engine Light

Causes

  • Broken or damaged sensor wires
  • Poor contact in the sensor connector
  • Malfunction of the pressure sensor itself
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor circuit
  2. Clean the connector contacts or replace it if necessary
  3. Check the functionality of the pressure sensor
  4. Replace sensor if necessary
  5. Check the serviceability of the ECU (in rare cases)

Related codes

Error P03AD by Vehicle Brand

FAQ

What does the P03AD code mean?

P03AD is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Pressure Sensor Circuit Intermittent/Erratic

What causes a P03AD error code?

The most common causes of P03AD include: Broken or damaged sensor wires; Poor contact in the sensor connector; Malfunction of the pressure sensor itself; Problems with the engine ECU.

How do I fix a P03AD diagnostic trouble code?

To fix P03AD: Check the integrity of the sensor circuit. Clean the connector contacts or replace it if necessary. Check the functionality of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P03AD?

Limited driving only, diagnose soon

How much does it cost to fix P03AD?

The estimated repair cost for P03AD is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat