OBD Guide

P1F63

Hybrid/EV System Voltage Discharge Circuit Performance

P1F63 is an OBD-II diagnostic trouble code meaning: Hybrid/EV System Voltage Discharge Circuit Performance. Common causes: high voltage discharge relay malfunction, damage to the high voltage system wiring harness. Estimated repair cost: $56–278.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Hybrid system fault warning message
  • Problems starting the car
  • Hybrid system power reduction
  • Check Engine Light Flashing
  • The car goes into emergency mode

Causes

  • High voltage discharge relay malfunction
  • Damage to the high voltage system wiring harness
  • Problems with the hybrid system control module
  • Short circuit in the discharge circuit
  • Malfunction of voltage sensors

How to Fix

  1. High Voltage Discharge Circuit Diagnostics
  2. Checking the condition of relays and fuses
  3. Inspect the wiring harness for damage
  4. Testing the hybrid system control module
  5. Replacing faulty components

Related codes

FAQ

What does the P1F63 code mean?

P1F63 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV System Voltage Discharge Circuit Performance

What causes a P1F63 error code?

The most common causes of P1F63 include: High voltage discharge relay malfunction; Damage to the high voltage system wiring harness; Problems with the hybrid system control module; Short circuit in the discharge circuit.

How do I fix a P1F63 diagnostic trouble code?

To fix P1F63: High Voltage Discharge Circuit Diagnostics. Checking the condition of relays and fuses. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1F63?

Do not drive — repair immediately

How much does it cost to fix P1F63?

The estimated repair cost for P1F63 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat