Code result
P26A1
Exhaust Aftertreatment Glow Plug Circuit Low
Moderate severity
What it means
The aftertreatment glow plug current is below expected. Either the element is partially open or supply is undersized.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Partial element failure raises resistance
highOne of the most commonly reported causes for this code — check this first.
Supply voltage drops under load
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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