Code result
P25DE
A Camshaft Position - Unable to Achieve Locked Position Bank 1
Moderate severity
What it means
Camshaft phaser A on bank 1 cannot reach its base position at engine shutdown so the lock pin never engages. Next cold start may run rough until oil pressure builds.
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
Worn vanes or housing inside the phaser
highOne of the most commonly reported causes for this code — check this first.
Sludge or contaminated oil prevents return to base
mediumA plausible cause — test and verify before replacing parts.
Oil control valve leaks internally
mediumA plausible cause — test and verify before replacing parts.
Related help
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