OBD Guide

U3507

Control Module Input Power B Circuit Intermittent/Erratic

U3507 is an OBD-II diagnostic trouble code meaning: Control Module Input Power B Circuit Intermittent/Erratic. Common causes: poor contact in power connectors, open or shorted wiring harness. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Intermittent failures of electronic systems
  • Spontaneous dashboard reboots
  • Appearance and disappearance of errors
  • Incorrect operation of related systems

Causes

  • Poor contact in power connectors
  • Open or shorted wiring harness
  • Power relay fault
  • Fuse problems
  • Control module defect

How to Fix

  1. Check the condition of circuit B fuses
  2. Inspect the connectors and contacts of the module
  3. Check the integrity of the wiring harness
  4. Test the power relay
  5. Diagnose the control module

Related codes

Error U3507 by Vehicle Brand

FAQ

What does the U3507 code mean?

U3507 is an OBD-II diagnostic trouble code that indicates: Control Module Input Power B Circuit Intermittent/Erratic

What causes a U3507 error code?

The most common causes of U3507 include: Poor contact in power connectors; Open or shorted wiring harness; Power relay fault; Fuse problems.

How do I fix a U3507 diagnostic trouble code?

To fix U3507: Check the condition of circuit B fuses. Inspect the connectors and contacts 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 U3507?

Limited driving only, diagnose soon

How much does it cost to fix U3507?

The estimated repair cost for U3507 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat