OBD Guide

B3655

Electrical Power Take Off Control Switch Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of additional equipment
  • PTO system failure
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in wiring harness
  • PTO switch failure
  • Poor contact in connectors
  • Control unit malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of connectors and contacts
  3. Test PTO switch
  4. Check the control unit for errors

Related codes

Error B3655 by Vehicle Brand