OBD Guide

U3562

Cathode Bypass Valve

U3562 is an OBD-II diagnostic trouble code meaning: Cathode Bypass Valve. Common causes: open or short circuit in valve circuit, solenoid valve malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Is On
  • Problems starting the engine
  • Unstable operation at idle

Causes

  • Open or short circuit in valve circuit
  • Solenoid valve malfunction
  • Wiring Harness Problems
  • Malfunction of the fuel cell control unit
  • Mechanical valve jamming

How to Fix

  1. Check valve control circuit integrity
  2. Check the resistance and operation of the solenoid valve
  3. Inspect the wiring harness for damage
  4. Check control signals from the control unit
  5. If necessary, replace the cathode bypass valve

Related codes

Error U3562 by Vehicle Brand

FAQ

What does the U3562 code mean?

U3562 is an OBD-II diagnostic trouble code that indicates: Cathode Bypass Valve

What causes a U3562 error code?

The most common causes of U3562 include: Open or short circuit in valve circuit; Solenoid valve malfunction; Wiring Harness Problems; Malfunction of the fuel cell control unit.

How do I fix a U3562 diagnostic trouble code?

To fix U3562: Check valve control circuit integrity. Check the resistance and operation of the solenoid valve. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U3562?

Yes, but get it checked soon

How much does it cost to fix U3562?

The estimated repair cost for U3562 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat