P269C

Exhaust Aftertreatment Glow Plug Control Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration
Unstable engine idling

Causes

Exhaust system glow plug malfunction
Open or short circuit in control circuit
Problems with the relay or spark plug control module
Oxidation or corrosion of contacts
Engine control unit (ECU) malfunction

How to Fix

Check glow plug resistance
Inspect the control circuit for damage
Check contacts and connectors for oxidation
Test the operation of the relay and control module
If necessary, replace the glow plug

Related codes

P269A P269B P269D