Barometric / Manifold Absolute Pressure Sensor Implausible Ratio (VW/Audi); ABS Rough-Road Signal Circuit Short to B+ — the signal the ECM receives from the SLABS ECU to suspend misfire detection, not a brake failure (Land Rover); Neutral Position Switch Circuit, manual transmission (Subaru)
The P1592 code means the vehicle's onboard diagnostic system has detected: Barometric / Manifold Absolute Pressure Sensor Implausible Ratio (VW/Audi); ABS Rough-Road Signal Circuit Short to B+ — the signal the ECM receives from the SLABS ECU to suspend misfire detection, not a brake failure (Land Rover); Neutral Position Switch Circuit, manual transmission (Subaru). This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- hard
- Estimated cost
- Varies — depends on the specific component this manufacturer-specific code points to on your vehicle. Diagnose before buying parts.
Manufacturer-specific code. P1592 is a manufacturer-specific DTC, so its exact definition can differ by make, model, and year. Use the meaning above as a general guide, and always confirm it against your vehicle manufacturer's official service information (or a make-specific scan tool) before diagnosing or replacing parts.
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What Are the Symptoms of P1592?
- Check Engine or a related warning light on
- Exact symptoms depend on the specific system this code covers for your make
- A make-specific scan reveals which subsystem and circuit is involved
What Causes P1592? (Most Likely First)
- A fault in the specific component or circuit this code monitors (the exact part varies by manufacturer) High
- Damaged wiring, a corroded connector, or a poor ground in that circuit Moderate
- A related sensor or control module reporting or causing the fault Moderate
Can I Still Drive with P1592?
No — stop driving. P1592 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
Does P1592 mean the same thing on every vehicle?
No. P1592 is a manufacturer-specific diagnostic trouble code, so its exact meaning varies by make, model, and year. Always confirm it against your vehicle manufacturer's service information before diagnosing or replacing parts.
What does P1592 most likely indicate?
Barometric / Manifold Absolute Pressure Sensor Implausible Ratio (VW/Audi); ABS Rough-Road Signal Circuit Short to B+ — the signal the ECM receives from the SLABS ECU to suspend misfire detection, not a brake failure (Land Rover); Neutral Position Switch Circuit, manual transmission (Subaru). Treat this as a general guide and verify the specifics for your vehicle.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P1592?
-
Confirm your exact make, model, and year first — P1592 is manufacturer-specific and can mean different things across brands.
-
Read P1592 with an enhanced/make-specific scan tool and check your manufacturer's official service information for the precise definition and procedure.
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Inspect the wiring, connectors, and grounds for the indicated circuit before replacing any part.
Sources 3
This page is built from documented references. Verify against your own service info before repair work.
- troublecodes.netVW/Audi and Subaru definitions
- autocodes.com / engine-codes.comLand Rover pages ("Antilock Brake System Rough Road Signal Short Circuit To Positive")
- landyzone.co.uk / rangerovers.netLand Rover owner-technician threads on the rough-road signal
Which Vehicles Commonly Get P1592?
- 2005-2014 Volkswagen Jetta
- 2006-2014 Volkswagen Golf
- 2005-2014 Volkswagen Passat
- 2009-2014 Volkswagen Tiguan
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