Code result
P0337
Crankshaft Position Sensor A Circuit Low Input
High severity
What it means
The CKP signal voltage is below the lower threshold. Usually a sensor whose internal coil has degraded, or a wiring short to ground.
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
Sensor failed (output too low)
highOne of the most commonly reported causes for this code — check this first.
Signal shorted to ground
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
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P0337 freeNo credit card required