P2618Crankshaft Position Signal Output Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2618 reports a crankshaft position output line that is shorted to ground. GM uses it widely, from the 2011–2012 hybrid tables to the 2019 ECM summaries, wherever the engine module provides a crank position output. The check runs while the output driver is off and the line is commanded high: 0.5 ohm or less toward ground counts as a short, 200 kilohm or more as an open (some controllers then add P2617). A failure needs 40 bad samples in 50 at 100 ms spacing, with the powertrain relay at 11 V or more and the engine not cranking; GM rates it Type B, so the MIL comes on after two trips. Mitsubishi lists P2618 for the 2022 Outlander. Typical findings are a pinched harness or water in a connector; the receiving module may switch to a substitute mode.
- What you may notice
- MIL on after two drive cycles
- Related faults or substitute mode in the receiving module
- Occasional hesitation or start problems
- Likely causes
- LikelyHarness pinched or chafed so the output touches ground
- PossibleWater or corrosion in the output connector
- RareShorted input stage in the receiving module
- RareOutput driver failure in the engine control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.