Crankshaft Position Signal Output Circuit Open
The P2617 code means the vehicle's onboard diagnostic system has detected: Crankshaft Position Signal Output Circuit Open. 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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What Are the Symptoms of P2617?
- Engine will not start
- No RPM signal to other modules
- Tachometer reads zero while cranking
- Multiple module communication errors
What Causes P2617? (Most Likely First)
- ECM crank signal output driver failure Very High
- Open wiring in crank signal output circuit High
- Failed crankshaft position sensor Moderate
- Damaged connector at signal distribution point Low
Can I Still Drive with P2617?
No — stop driving. P2617 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
Is P2617 the same as a crank sensor failure?
Not exactly. P2617 is about the ECM output circuit that distributes the crank signal to other modules. The crank sensor itself may be working fine.
Why does the tachometer read zero with P2617?
The tachometer often receives its RPM signal from the ECM crank output. If this circuit is open, the tach gets no signal and reads zero.
What modules need the crank signal?
The transmission control module, instrument cluster, traction control, and other modules may all use the crank signal from the ECM for timing and speed calculations.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2617?
-
Verify crank position sensor signal at ECM input
-
Check output circuit wiring for continuity
-
Test ECM crank signal output to other modules
-
Inspect signal distribution connectors
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P2617?
- 2010-2020 Toyota Camry
- 2012-2019 Honda Civic
- 2008-2018 Ford F-150
- 2011-2020 Chevrolet Silverado
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