Code result
P031D
Ignition D Control Signal Circuit/Open
High severity
What it means
The ignition D control signal circuit is open — typically the PCM drive line for the first ignition coil group has lost continuity.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Open wire between PCM and coil
highOne of the most commonly reported causes for this code — check this first.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Cracked solder joint inside the module or sensor
lowLess common, but worth ruling out after the more likely causes.
Related help
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