P036C

Ignition G Control Signal Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Misfire in a specific cylinder
Loss of engine power
Floating idle speed
Check Engine Light Illuminates
Hard engine start

Causes

Open or short circuit in the ignition coil wiring harness
Ignition coil malfunction
Connection problems/contact oxidation
Engine ECU malfunction
Mechanical damage to wiring

How to Fix

Check the integrity of the ignition coil wiring harness
Perform a visual inspection of connectors and contacts
Check the resistance of the ignition coil
Check the control signal from the ECU using an oscilloscope
If necessary, replace the ignition coil or ECU

Related codes

P0351 P0352 P0353 P0354 P0300 P0301