OBD Guide
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B1425

Control Module Power Circuit

B1425 is an OBD-II diagnostic trouble code meaning: Control Module Power Circuit. Common causes: open or short circuit in the power supply, damaged or corroded connectors. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • The Check Engine or SRS light comes on
  • Failure of individual vehicle systems
  • Electrical malfunctions

Causes

  • Open or short circuit in the power supply
  • Damaged or corroded connectors
  • Faulty relay or fuse
  • Wiring Harness Problems
  • Control module failure

How to Fix

  1. Check the condition of fuses and relays
  2. Inspect the wiring harness for damage
  3. Check contacts for oxidation and corrosion
  4. Check the voltage level in the power circuit
  5. Replace damaged components if necessary

Related codes

B1424B1426U0121

FAQ

What does the B1425 code mean?

B1425 is an OBD-II diagnostic trouble code that indicates: Control Module Power Circuit

What causes a B1425 error code?

The most common causes of B1425 include: Open or short circuit in the power supply; Damaged or corroded connectors; Faulty relay or fuse; Wiring Harness Problems.

How do I fix a B1425 diagnostic trouble code?

To fix B1425: Check the condition of fuses and relays. Inspect the wiring harness for damage. Check contacts for oxidation and corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1425?

Do not drive — repair immediately

How much does it cost to fix B1425?

The estimated repair cost for B1425 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat