OBD Guide

P035B

Ignition E Control Signal Circuit Low

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

Symptoms

  • Misfires
  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Open or short circuit in wiring harness
  • Ignition coil malfunction
  • Problems with the ECU
  • Poor contact in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the ignition coil and ECU connectors
  3. Check the resistance of the ignition coil
  4. Replace the ignition coil if necessary
  5. Check and, if necessary, replace the computer

Related codes

Error P035B by Vehicle Brand