OBD Guide

P055E

Oxygen Sensor Control Module System Voltage

P055E is an OBD-II diagnostic trouble code meaning: Oxygen Sensor Control Module System Voltage. Common causes: poor contact in module connectors, open or short circuit in wiring. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • Reduced engine power
  • Unstable idling
  • Possible transition to emergency mode

Causes

  • Poor contact in module connectors
  • Open or short circuit in wiring
  • Faulty relay or circuit fuse
  • Module power problems
  • Failure of the oxygen sensor control module

How to Fix

  1. Check the condition of the fuses and relays of the circuit
  2. Inspect the module connectors for oxidation or damage.
  3. Check wiring integrity
  4. Measure the module supply voltage
  5. Test the control module using a scanner
  6. If necessary, replace the control module

Related codes

Error P055E by Vehicle Brand

FAQ

What does the P055E code mean?

P055E is an OBD-II diagnostic trouble code that indicates: Oxygen Sensor Control Module System Voltage

What causes a P055E error code?

The most common causes of P055E include: Poor contact in module connectors; Open or short circuit in wiring; Faulty relay or circuit fuse; Module power problems.

How do I fix a P055E diagnostic trouble code?

To fix P055E: Check the condition of the fuses and relays of the circuit. Inspect the module connectors for oxidation or damage.. Check wiring integrity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P055E?

Limited driving only, diagnose soon

How much does it cost to fix P055E?

The estimated repair cost for P055E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat