P1900 – Mazda DTC

Mazda DTC P1900 – Turbine Speed Sensor Circuit Intermittent

DTC P1900 meaning on Mazda

DTC P1900 for Mazda refers to the Turbine Speed Sensor Circuit Intermittent. This diagnostic trouble code indicates that there is an intermittent issue with the circuit related to the turbine speed sensor in the vehicle.

Mazda DTC P1900 symptoms

Symptoms of DTC P1900 on a Mazda may include:

• Check Engine Light illuminated on the dashboard
• Transmission shifting issues
• Harsh or erratic shifting
• Decreased fuel efficiency

Mazda DTC P1900 causes

Common causes of DTC P1900 on a Mazda include:

• Faulty turbine speed sensor
• Wiring or connector issues in the turbine speed sensor circuit
• Intermittent electrical connection problems

Mazda DTC P1900 seriousness

The seriousness of DTC P1900 on a Mazda depends on the underlying cause. Ignoring this code can lead to potential transmission issues and further damage if not addressed promptly.

How to diagnose DTC P1900 on Mazda

To diagnose DTC P1900 on a Mazda, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the trouble codes
2. Inspect the turbine speed sensor and its circuit for any visible damage
3. Check the wiring and connectors for loose connections or corrosion
4. Test the turbine speed sensor using a multimeter

How to fix DTC P1900 on Mazda

To fix DTC P1900 on a Mazda, the following steps may be taken:

1. Replace the faulty turbine speed sensor if necessary
2. Repair any damaged wiring or connectors in the circuit
3. Clear the trouble codes using a diagnostic scanner
4. Test drive the vehicle to ensure the issue has been resolved

How to erase DTC P1900 on Mazda

To erase DTC P1900 on a Mazda, follow these steps:

1. Use a diagnostic scanner to clear the trouble codes
2. Ensure the underlying issue causing the code has been resolved
3. Perform a test drive to confirm the code does not return

Recommended tools for Mazda diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.