← Search Parts

Ignition Harness

Critical For Operation

Ignition System

Transfers electrical signals between the ignition components and the vehicle’s ECU.

The ignition harness provides the necessary electrical connections between the ignition system components (coil, module, plugs) and the vehicle’s ECU, allowing for precise spark timing and control.

💵
Typical part cost
$50–$150🔒
🔧
Typical labor cost
$100–$300🔒
🛣️
Typically lasts
100,000–200,000 mi
📅
Or about
7.0–10.0 years
🛠️
DIY difficulty
5/10

⚠️ Owners Often Notice

If the Ignition Harness is starting to fail, these are the signs owners most commonly report before it gets worse:

Engine misfires
Engine stalling
Electrical issues
Ignition system failure

Related Services

Services commonly performed on or around this part.

Replace Ignition Harness

No standard interval on file

Inspect Ignition Harness

No standard interval on file

Test Ignition Harness

No standard interval on file