Crankshaft Position Signal Output Circuit High
The P2619 code means the vehicle's onboard diagnostic system has detected: Crankshaft Position Signal Output Circuit High. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- hard
- Estimated cost
- $100 - $900 (parts and labor)
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Common Symptoms
- Incorrect engine speed readings across modules
- Transmission erratic shifting
- Traction control malfunction
- Check engine light and other warning lights on
Probable Causes (Ranked by Likelihood)
- Short to voltage in crank output circuit Very High
- ECM output driver stuck high High
- Wiring crossed with power circuit Moderate
- Aftermarket tachometer wiring causing feedback Low
Step-by-Step Diagnostic Procedure
-
Check crank output wiring for short to battery voltage
-
Test ECM output with oscilloscope for proper waveform
-
Inspect wiring routing for contact with power wires
-
Remove aftermarket tachometer connections if present
Frequently Asked Questions
Can an aftermarket tachometer cause P2619?
Yes. If an aftermarket tachometer is tapped into the crank signal output, it can feed voltage back into the circuit, causing a high signal condition.
How does P2619 affect other vehicle systems?
A stuck-high crank signal makes other modules see an incorrect engine speed, causing erratic transmission shifts, traction control faults, and speedometer errors.
What waveform should the crank output produce?
It should produce a square wave or digital pulse signal that varies in frequency with engine speed. An oscilloscope will show clean pulses, not a constant voltage.
Sources
This page is built from documented references. Verify against your own service info before repair work.
P2619 on Diesel, EV & Equipment
The same code ID appears across other engines and platforms. The diagnostic flow varies by manufacturer — these are the platform-specific breakdowns:
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