P26A0

Exhaust Aftertreatment Glow Plug Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$22–89 (est.)

Symptoms

Check Engine Light Is On
Reduced diesel particulate filter regeneration efficiency
Increased fuel consumption
Reduced engine power
Increased emissions

Causes

Exhaust system glow plug malfunction
Open or short circuit in the spark plug circuit
Relay or fuse problems
Engine control unit malfunction
Poor contact in wiring connectors

How to Fix

Check glow plug resistance
Inspect wiring and connectors for damage
Check fuses and relays
Scan the control unit for errors
Replace a faulty glow plug

Related codes

P26A1 P26A2 P26A3