OBD Guide

P03C7

Cylinder 6 Pressure Sensor Circuit

P03C7 is an OBD-II diagnostic trouble code meaning: Cylinder 6 Pressure Sensor Circuit. Common causes: open or short circuit in wiring harness, cylinder pressure sensor malfunction. 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
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in wiring harness
  • Cylinder pressure sensor malfunction
  • Poor contact in the sensor connector
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check the sensor connector for corrosion and damage.
  3. Replace cylinder pressure sensor if necessary
  4. Check and update the ECU firmware if required

Related codes

Error P03C7 by Vehicle Brand

FAQ

What does the P03C7 code mean?

P03C7 is an OBD-II diagnostic trouble code that indicates: Cylinder 6 Pressure Sensor Circuit

What causes a P03C7 error code?

The most common causes of P03C7 include: Open or short circuit in wiring harness; Cylinder pressure sensor malfunction; Poor contact in the sensor connector; Problems with the engine ECU.

How do I fix a P03C7 diagnostic trouble code?

To fix P03C7: Check the integrity of the sensor wiring harness. Check the sensor connector for corrosion and damage.. Replace cylinder pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P03C7?

Limited driving only, diagnose soon

How much does it cost to fix P03C7?

The estimated repair cost for P03C7 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat