P0315

Crankshaft Position System Variation Not Learned

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable idle
Misfires
Difficulty starting the engine
Reduced engine power

Causes

Crankshaft position (CKP) sensor malfunction
Damage to the ring gear on the flywheel
Problems with the CKP sensor wiring harness
Engine control unit (ECU) malfunction
Incorrect installation of the sensor after replacement

How to Fix

Check the condition of the crankshaft position sensor
Inspect the ring gear on the flywheel
Check the integrity of the CKP sensor wiring harness
Perform the crankshaft variation learning procedure using diagnostic equipment
If necessary, replace the CKP sensor or flywheel

Related codes

P0335 P0336 P0300