OBD Guide
ENFRDEESPT

P303F

Hybrid/EV Battery Interface Control Module 12 Performance

P303F is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 12 Performance. Common causes: control module software errors, overheating of electronic components. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced vehicle power
  • Switching to emergency mode
  • Warning messages on the instrument panel
  • Reduced electric range
  • Battery charging problems

Causes

  • Control module software errors
  • Overheating of electronic components
  • Module power problems
  • Damage to electrical circuits
  • Contact corrosion

How to Fix

  1. Check error codes and scan data
  2. Inspect the electrical connections of the module
  3. Check the integrity of the wiring harness
  4. Update module software
  5. If necessary, replace the control module
  6. Repair only from an authorized dealer

Related codes

P303EP3040P0A00

FAQ

What does the P303F code mean?

P303F is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 12 Performance

What causes a P303F error code?

The most common causes of P303F include: Control module software errors; Overheating of electronic components; Module power problems; Damage to electrical circuits.

How do I fix a P303F diagnostic trouble code?

To fix P303F: Check error codes and scan data. Inspect the electrical connections of the module. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P303F?

Limited driving only, diagnose soon

How much does it cost to fix P303F?

The estimated repair cost for P303F is $167–556. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat