What are the common causes of P2618?

A short to ground on the crankshaft position signal wire. A weak crankshaft position sensor signal. A corroded crank sensor connector. A crank sensor air gap that is too wide.

Read engine RPM on a scan tool while cranking. Test the crank signal wire for a short to ground. Check the crank sensor air gap and mounting. Inspect the crank sensor connector. Replace the crankshaft position sensor if the signal is weak. Clear the code and retest.

P2618

Crankshaft Position Signal Output Circuit Low

System: Computer output circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Computer and Auxiliary Controls

What it means

P2618 means Crankshaft Position Signal Output Circuit Low.

Check these first

A short to ground on the crankshaft position signal wire
A weak crankshaft position sensor signal
A corroded crank sensor connector
A crank sensor air gap that is too wide

What to do next

Read engine RPM on a scan tool while cranking
Test the crank signal wire for a short to ground
Check the crank sensor air gap and mounting
Inspect the crank sensor connector
Replace the crankshaft position sensor if the signal is weak
Clear the code and retest

Look up another code

Code or symptom

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.