What does P035E mean?

Ignition Coil E Primary/Secondary Circuit Malfunction Engine misfire, rough idle, reduced power, possible difficulty starting

AutoFixDB - Free OBD-II diagnostic trouble code lookup. Find causes, symptoms, diagnostic steps and repair solutions.

Overview

P035E ignition coil E primary/secondary circuit malfunction diagnostic trouble code meaning, causes, symptoms, diagnostic steps, repair

Common Symptoms

Check engine light illuminated
Rough idle or engine vibration
Engine misfire on affected cylinder
Reduced engine performance or hesitation
Poor fuel economy
Difficulty starting

Most Common Causes

Faulty ignition coil E high

Ignition coil internal short or open can disrupt circuit and trigger the code

Wiring harness damage or short/open medium

Broken, frayed, corroded or disconnected wiring to coil can cause low/irregular signal

Poor connector connection at coil medium

Loose, corroded or bent pins can interrupt primary/secondary circuit

ECM/PCM coil driver fault low

Rare but possible ECM driver transistor failure affects ignition signal

Blown fuse/relay in ignition supply circuit low

Fuse or ignition relay failure can remove power to coil circuit

Diagnostic Steps

Retrieve DTCs and freeze frame data with OBD-II scanner

Expected: Confirmed P035E stored with relevant operating conditions

Interpretation: Verify code present before further diagnosis
Visually inspect ignition coil E and connector for damage or corrosion

Expected: No broken wires, corrosion, loose pins

Interpretation: If issues found, repair wiring/connector first
Test primary and secondary circuit continuity with multimeter

Expected: Continuity within manufacturer spec

Interpretation: Open or short indicates wiring or coil fault
Swap coil E with another known good coil (if feasible)

Expected: If code follows coil, coil is faulty

Interpretation: Confirms coil unit failure
Check voltage and ground at coil connector with ignition on

Expected: Proper battery voltage and solid ground

Interpretation: Missing power/ground indicates harness or module issue
If all else checks good, test ECM coil driver signal with oscilloscope

Expected: Proper driver waveform

Interpretation: Faulty driver suggests ECM/PCM fault

Repair Solutions

Replace faulty ignition coil E medium

Estimated Cost: $80 - $300

Typical repair when coil internal failure is confirmed

Repair or replace damaged wiring/connector medium

Estimated Cost: $50 - $250

Cost varies with extent of wiring repair

Replace blown fuse or ignition relay easy

Estimated Cost: $10 - $50

Simple electrical component replacement

Replace or reprogram ECM/PCM hard

Estimated Cost: $400 - $1500

Only if confirmed faulty after all other diagnostics

Common Misdiagnoses

Avoid these common diagnostic mistakes:

Replacing spark plug without checking coil circuit
Replacing unrelated sensors (e.g., cam/crank sensors) without addressing coil circuit

Frequently Asked Questions

Technical definition of P035E OBD-II Code

The P035E code stands for Ignition Coil E Primary/Secondary Circuit Malfunction. This generally indicates an issue with the Ignition system.

Should I stop driving if I have P035E?

This is a medium priority issue. Engine misfire, rough idle, reduced power, possible difficulty starting

What happens when the P035E code is active?

Drivers often report: Check engine light illuminated, Rough idle or engine vibration, Engine misfire on affected cylinder when this code is present.

What parts fail when P035E is set?

This code is frequently triggered by: Faulty ignition coil E, Wiring harness damage or short/open, Poor connector connection at coil.

Is P035E expensive to fix?

Expect to pay around $50 if the issue is a Replace blown fuse or ignition relay, but up to $1500 if the Replace or reprogram ECM/PCM needs replacement.

Does code P035E apply to Toyota vehicles?

Yes, P035E is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

P035E: Ignition Coil E Primary/Secondary Circuit Malfunction