OBD Guide

P04C5

Fuel Fill Door Lock Position Sensor/Switch Circuit Low

P04C5 is an OBD-II diagnostic trouble code meaning: Fuel Fill Door Lock Position Sensor/Switch Circuit Low. Common causes: malfunction of the fuel tank flap position sensor, sensor circuit open. Estimated repair cost: $22–56.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Check Engine Light Is On
  • It is impossible to refuel (if the hatch is automatic)
  • Errors in the EVAP system

Causes

  • Malfunction of the fuel tank flap position sensor
  • Sensor circuit open
  • Short circuit in the circuit
  • Contact corrosion
  • Wiring Harness Problems

How to Fix

  1. Check the continuity of the sensor circuit (a wiring diagram and a multimeter may be required)
  2. Inspect the sensor contacts and connector for corrosion or damage.
  3. Test the sunroof lock position sensor
  4. Replace sensor/repair wiring if necessary
  5. Reset OBD-II error and check if it comes back

Related codes

Error P04C5 by Vehicle Brand

FAQ

What does the P04C5 code mean?

P04C5 is an OBD-II diagnostic trouble code that indicates: Fuel Fill Door Lock Position Sensor/Switch Circuit Low

What causes a P04C5 error code?

The most common causes of P04C5 include: Malfunction of the fuel tank flap position sensor; Sensor circuit open; Short circuit in the circuit; Contact corrosion.

How do I fix a P04C5 diagnostic trouble code?

To fix P04C5: Check the continuity of the sensor circuit (a wiring diagram and a multimeter may be required). Inspect the sensor contacts and connector for corrosion or damage.. Test the sunroof lock position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P04C5?

Yes, but get it checked soon

How much does it cost to fix P04C5?

The estimated repair cost for P04C5 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat