OBD Guide

B1425

Control Module Power Circuit

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

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