OBD Guide

P2CD9

Turbocharger/Supercharger Boost Sensor D Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Rough engine operation
  • Check Engine Light Illuminates
  • Acceleration problems

Causes

  • Boost pressure sensor malfunction
  • Short circuit in the sensor circuit to power
  • Broken or damaged wiring
  • Problems with sensor connectors
  • ECU malfunction

How to Fix

  1. Check the boost pressure sensor for damage
  2. Check the continuity and resistance of the sensor circuit
  3. Check sensor connectors and connections
  4. Replace the boost pressure sensor if necessary
  5. Check and, if necessary, replace the computer

Related codes

Error P2CD9 by Vehicle Brand