OBD Guide

P035D

Ignition F Control Signal Circuit/Open

P035D is an OBD-II diagnostic trouble code meaning: Ignition F Control Signal Circuit/Open. Common causes: open or short circuit in wiring harness, ignition coil malfunction. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Misfire in the corresponding cylinder
  • Unstable engine idling
  • Reduced power and dynamics
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in wiring harness
  • Ignition coil malfunction
  • Problems with the engine control unit (ECU)
  • Poor contact in connectors
  • Mechanical damage to wires

How to Fix

  1. Check the condition of the wiring harness and ignition coil connectors
  2. Check the resistance of the ignition coil (compare the nameplate values)
  3. Test control circuit for open/short circuit
  4. If necessary, replace the ignition coil
  5. Clear the error and check if it returns

Related codes

Error P035D by Vehicle Brand

FAQ

What does the P035D code mean?

P035D is an OBD-II diagnostic trouble code that indicates: Ignition F Control Signal Circuit/Open

What causes a P035D error code?

The most common causes of P035D include: Open or short circuit in wiring harness; Ignition coil malfunction; Problems with the engine control unit (ECU); Poor contact in connectors.

How do I fix a P035D diagnostic trouble code?

To fix P035D: Check the condition of the wiring harness and ignition coil connectors. Check the resistance of the ignition coil (compare the nameplate values). Test control circuit for open/short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P035D?

Limited driving only, diagnose soon

How much does it cost to fix P035D?

The estimated repair cost for P035D is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat