P1336Crankshaft Position System Variation Not Learned (CASE)
GM requires the ECU to 'learn' the crankshaft sensor variation; this code means the procedure has not been performed.
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Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Check Engine light
- Possible undetected misfires
Possible Causes
The components or conditions that trigger this code
- 1CASE relearn procedure not performed
- 2Damaged reluctor wheel
- 3CKP sensor
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Perform the crankshaft variation relearn with a scan tool
- 2Check the CKP sensor
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
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