Engine-CodesChevrolet – P1522 Chevrolet

P1522 Chevrolet Code - Park/Neutral to Drive/Reverse at High RPM

Quick Answer

The P1522 diagnostic trouble code for Chevrolet vehicles indicates a problem with the transmission range sensor, specifically when shifting from park or neutral to drive or reverse at high RPM. Common causes include Faulty transmission range sensor/neutral safety switch, Wiring or connector issues in the transmission range sensor circuit, ECM software or hardware malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1522 Chevrolet indicates Park/Neutral to Drive/Reverse at High RPM.
Common causes
Common causes include Faulty transmission range sensor/neutral safety switch, Wiring or connector issues in the transmission range sensor circuit, ECM software or hardware malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1522 Chevrolet Description

The P1522 diagnostic trouble code for Chevrolet vehicles indicates a problem with the transmission range sensor, specifically when shifting from park or neutral to drive or reverse at high RPM. The transmission range sensor, also known as the neutral safety switch, is responsible for informing the engine control module (ECM) of the gear position selected by the driver. This information is crucial for the ECM to adjust various parameters such as fuel delivery, ignition timing, and transmission shifting points.

OBDII Code P1522 Chevrolet - Park/Neutral to Drive/Reverse at High RPM
P1522 Chevrolet Code - Park/Neutral to Drive/Reverse at High RPM

Common Causes of P1522 Chevrolet

  1. Faulty transmission range sensor/neutral safety switch.
  2. Wiring or connector issues in the transmission range sensor circuit.
  3. ECM software or hardware malfunction.
  4. Low transmission fluid level or contaminated fluid.
  5. Mechanical issues in the transmission such as worn clutches or solenoids.

Symptoms of P1522 Chevrolet

  1. Harsh shifting when moving from park or neutral to drive or reverse at high RPM.
  2. Delayed engagement when shifting gears.
  3. Vehicle stalling when shifting from park or neutral to drive or reverse.
  4. Transmission slipping or erratic shifting behavior.
  5. Check Engine Light illuminated on the dashboard.

How to Fix P1522 Chevrolet

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific fault code (P1522) and any related codes.
  2. Inspect the transmission range sensor and its wiring harness for any signs of damage, corrosion, or loose connections. Replace or repair as necessary.
  3. Check the transmission fluid level and condition. Top off or replace the fluid if needed.
  4. Clear the fault codes from the ECM's memory and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, consider seeking professional help from a certified mechanic with experience in transmission diagnostics and repair.

Cost to Fix P1522 Chevrolet

The typical repair costs for addressing a P1522 Chevrolet code can range from $200 to $500, depending on the specific cause of the issue and the labor rates of the repair shop. This estimate includes the cost of parts such as a new transmission range sensor or wiring harness, as well as the labor charges for diagnosis and repair. Keep in mind that prices may vary based on location, vehicle make and model, and the extent of the repairs needed. It's advisable to obtain multiple quotes from different repair shops to ensure a competitive price.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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